subject:(Animal Sciences)

1. Keomanivong, Faithe Elizabeth. The impact of digestive enzymes in the ruminant animal.

Degree: 2017, North Dakota State University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10244582

► Understanding the enzymatic activity in ruminant digestive systems is essential for securing adequate growth, reproduction and overall metabolism. In order to evaluate the impact… (more)

▼ Understanding the enzymatic activity in ruminant digestive systems is essential for securing adequate growth, reproduction and overall metabolism. In order to evaluate the impact of various nutritional sources and dietary strategies on enzymatic activity, five experiments were designed. Experiment 1 examined the influence of nutrient restriction and melatonin supplementation on maternal and fetal pancreatic development. Experiment 2 explored various phases of the reproductive cycle and the impact of intravenous arginine infusion amid differing levels of feed intake. Experiment 3 determined the effectiveness of realimentation during advancing stages of gestation. Experiments 4 and 5 examined the impact of variable rations on ruminal pH, NH3, VFA, total gas and methane concentration and enzymatic activity in steers consuming rations of fine- vs coarse-rolled corn and 20% vs 40% DDGS (Experiment 4) and corn vs barley based diets with low- vs moderate-oil DDGS (Experiment 5). Overall, nutrient restriction caused reduced BW, pancreatic mass and pancreatic enzyme activity in mature animals. In Experiment 1, the addition of dietary melatonin diminished the impact of nutrient restriction on maternal pancreatic mass and α-amylase activity while reducing the secretion of insulin and size of insulin-containing cell clusters. Fetal pancreatic enzymes were unaffected by treatment, however, pancreatic morphology exhibited greater insulin-containing cell cluster size in fetuses from adequately fed dams. In Experiment 2, arginine infusion did not alter pancreatic exocrine or endocrine function during the various luteal stage phases. In Experiment 3, realimentation during different stages of gestation decreased the impact of reduced feed intake and, in some cases, allowed for compensatory gain of the exocrine pancreas. The maternal and fetal endocrine pancreas was unaffected. Mature animals had greater changes in pancreatic exocrine secretions whereas fetuses differed mainly in endocrine function as a result of improper nutritional status. Comparison of pancreatic tissue revealed a greater quantity, and larger size, of insulin-containing cell clusters in fetuses which appear to separate as the animal matures. Differences in rumen enzymatic activity was found in Experiments 4 and 5, however, despite changes in lag time of gas production or ruminal degradation rates, the concentration of greenhouse gases (CH₄ or CO₂) produced were unaffected.

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Keomanivong, F. E. (2017). The impact of digestive enzymes in the ruminant animal. (Thesis). North Dakota State University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10244582

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Keomanivong, Faithe Elizabeth. “The impact of digestive enzymes in the ruminant animal.” 2017. Thesis, North Dakota State University. Accessed February 17, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=10244582.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Keomanivong, Faithe Elizabeth. “The impact of digestive enzymes in the ruminant animal.” 2017. Web. 17 Feb 2020.

Vancouver:

Keomanivong FE. The impact of digestive enzymes in the ruminant animal. [Internet] [Thesis]. North Dakota State University; 2017. [cited 2020 Feb 17]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10244582.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Keomanivong FE. The impact of digestive enzymes in the ruminant animal. [Thesis]. North Dakota State University; 2017. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10244582

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

2. Jaborek, Jerad R. Effects of Energy Source, Energy Level, Sex, and Age on Growth, Performance, Carcass Characteristics, Meat Characteristics, and Flavor Intensity of Lambs, Yearling Ewe Lambs, and Mature Ewes.

Degree: MS, Animal Sciences, 2016, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1480423720172888

► Sheep were fed to determine the effects of energy source, energy level, lamb sex, and sheep age on growth, performance, carcass and meat characteristics and… (more)

▼ Sheep were fed to determine the effects of energy source, energy level, lamb sex, and sheep age on growth, performance, carcass and meat characteristics and the flavor profile of sheep. Ninety six lambs (n=48 ewes and n=48 wethers) were offered ad libitum access to whole shelled corn (WSC), ad libitum access to alfalfa pellets, or access to a WSC offered at 85% of the ad libitum diet. Lambs were raised to 59.0 and 63.5 kg for ewe and wether lambs, respectively, before being removed from the feeding trial, with 48 lambs (n=24 ewes and n= 24 wethers) being sent for slaughter and the other 48 lambs remaining on feed until a year of age. Lambs offered ad libitum access to WSC had the greatest average daily gain (ADG), efficiency of gain (G:F), and cheapest feed cost per unit of gain (COG) when compared to lambs offered alfalfa pellets and limit-fed WSC. Lambs offered WSC produced heavier and fatter carcasses due to greater dressing percentages and lower visceral organ weights compared to lambs offered alfalfa pellets. Differences due to sex were minimal because the experiment was designed to harvest lambs at similar points of maturity. Lambs (long-feds) that remained on feed were fed for an additional 118 days before deciding to remove lambs early (294 days of age instead of 365+ days of age) because they became too fat and heavy to structurally support themselves in the feedlot. Long-fed lambs offered ad libitum access to WSC still had the greatest ADG and G:F when compared to long-fed lambs offered alfalfa pellets and limit-fed WSC. Long-fed lambs offered ad libitum access to WSC also produced the fattest carcasses, while limit-fed lambs produced carcasses with similar amounts of fat to alfalfa fed lambs. Sixteen yearling ewe lambs and 16 mature ewes were also fed ad libitum WSC and ad libitum alfalfa pellet diets to compare meat characteristics with the 16 ewe lambs fed the same two diets. Numerical differences were observed for greater G:F, lower dry matter intake, and lower COG when yearling ewe lambs and mature ewes were offered WSC compared to alfalfa pellets. Offering WSC also decreased the total tract weight and increased the amount of fat deposited on carcasses from yearling ewe lambs and mature compared to offering alfalfa pellets. Meat characteristics were analyzed in two trials. Trial 1 was a completely randomized design with a 3 × 2 factorial arrangement of treatments to identify differences due to sheep age and diet. Trial 2 was a completely randomized design with a 3 × 2 × 2 factorial arrangement of treatments to identify differences due to diet, lamb sex, and lamb age. Samples from the loins and ground shoulder were saved to determine the percent extractable lipid and ultimate pH. Loins and ground shoulder patties were cooked used in an untrained taste panel to rate lamb flavor intensity, off-flavor intensity and off-flavors. Loins were also used to conduct slice shear force as an objective measurement of tenderness. The ultimate pH decreased with increasing sheep age, with ewe lambs tended to have… Advisors/Committee Members: Fluharty, Francis (Advisor).

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Jaborek, J. R. (2016). Effects of Energy Source, Energy Level, Sex, and Age on Growth, Performance, Carcass Characteristics, Meat Characteristics, and Flavor Intensity of Lambs, Yearling Ewe Lambs, and Mature Ewes. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1480423720172888

Chicago Manual of Style (16^th Edition):

Jaborek, Jerad R. “Effects of Energy Source, Energy Level, Sex, and Age on Growth, Performance, Carcass Characteristics, Meat Characteristics, and Flavor Intensity of Lambs, Yearling Ewe Lambs, and Mature Ewes.” 2016. Masters Thesis, The Ohio State University. Accessed February 17, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1480423720172888.

MLA Handbook (7^th Edition):

Jaborek, Jerad R. “Effects of Energy Source, Energy Level, Sex, and Age on Growth, Performance, Carcass Characteristics, Meat Characteristics, and Flavor Intensity of Lambs, Yearling Ewe Lambs, and Mature Ewes.” 2016. Web. 17 Feb 2020.

Vancouver:

Jaborek JR. Effects of Energy Source, Energy Level, Sex, and Age on Growth, Performance, Carcass Characteristics, Meat Characteristics, and Flavor Intensity of Lambs, Yearling Ewe Lambs, and Mature Ewes. [Internet] [Masters thesis]. The Ohio State University; 2016. [cited 2020 Feb 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1480423720172888.

Council of Science Editors:

Jaborek JR. Effects of Energy Source, Energy Level, Sex, and Age on Growth, Performance, Carcass Characteristics, Meat Characteristics, and Flavor Intensity of Lambs, Yearling Ewe Lambs, and Mature Ewes. [Masters Thesis]. The Ohio State University; 2016. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1480423720172888

University of Minnesota

3. Husfeldt, Adam William. Investigation of recycled manure solids as freestall bedding for dairy cows in the Midwest.

Degree: MS, Animal sciences, 2011, University of Minnesota

URL: http://purl.umn.edu/114028

University of Minnesota M.S. thesis. July 2011. Major: Animal sciences. Advisor: Dr. Marcia Endres. 1 computer file (PDF); ix, 121 pages.

Abstract summary not available

Advisors/Committee Members: Dr. Marcia Endres.

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Husfeldt, A. W. (2011). Investigation of recycled manure solids as freestall bedding for dairy cows in the Midwest. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/114028

Chicago Manual of Style (16^th Edition):

Husfeldt, Adam William. “Investigation of recycled manure solids as freestall bedding for dairy cows in the Midwest.” 2011. Masters Thesis, University of Minnesota. Accessed February 17, 2020. http://purl.umn.edu/114028.

MLA Handbook (7^th Edition):

Husfeldt, Adam William. “Investigation of recycled manure solids as freestall bedding for dairy cows in the Midwest.” 2011. Web. 17 Feb 2020.

Vancouver:

Husfeldt AW. Investigation of recycled manure solids as freestall bedding for dairy cows in the Midwest. [Internet] [Masters thesis]. University of Minnesota; 2011. [cited 2020 Feb 17]. Available from: http://purl.umn.edu/114028.

Council of Science Editors:

Husfeldt AW. Investigation of recycled manure solids as freestall bedding for dairy cows in the Midwest. [Masters Thesis]. University of Minnesota; 2011. Available from: http://purl.umn.edu/114028

University of Minnesota

4. Kmicikewycz, Alanna Daria. Nutritional feeding and management strategies to optimize growth and health in dairy calves.

Degree: MS, Animal sciences, 2011, University of Minnesota

URL: http://purl.umn.edu/114050

University of Minnesota M.S. thesis. June 2011. Major: Animal sciences. Advisor: Noah B. Litherland. 1 computer file (PDF); vii, 113 pages.

Abstract summary not available

Advisors/Committee Members: Noah B. Litherland.

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Kmicikewycz, A. D. (2011). Nutritional feeding and management strategies to optimize growth and health in dairy calves. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/114050

Chicago Manual of Style (16^th Edition):

Kmicikewycz, Alanna Daria. “Nutritional feeding and management strategies to optimize growth and health in dairy calves.” 2011. Masters Thesis, University of Minnesota. Accessed February 17, 2020. http://purl.umn.edu/114050.

MLA Handbook (7^th Edition):

Kmicikewycz, Alanna Daria. “Nutritional feeding and management strategies to optimize growth and health in dairy calves.” 2011. Web. 17 Feb 2020.

Vancouver:

Kmicikewycz AD. Nutritional feeding and management strategies to optimize growth and health in dairy calves. [Internet] [Masters thesis]. University of Minnesota; 2011. [cited 2020 Feb 17]. Available from: http://purl.umn.edu/114050.

Council of Science Editors:

Kmicikewycz AD. Nutritional feeding and management strategies to optimize growth and health in dairy calves. [Masters Thesis]. University of Minnesota; 2011. Available from: http://purl.umn.edu/114050

University of Minnesota

5. Leuer, Robert Francis. Benchmarking of Minnesota dairy herd improvement association records and analysis of the transition period with an automatic milking system.

Degree: MS, Animal science, 2011, University of Minnesota

URL: http://purl.umn.edu/117050

University of Minnesota M.S. thesis. August 2011. Major: Animal science. Advisor: Jeffrey K. Reneau. 1 computer file (PDF); vi, 99 pages, appendix p. 97-99.

Summary abstract not available

Advisors/Committee Members: Jeffrey K. Reneau.

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Leuer, R. F. (2011). Benchmarking of Minnesota dairy herd improvement association records and analysis of the transition period with an automatic milking system. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/117050

Chicago Manual of Style (16^th Edition):

Leuer, Robert Francis. “Benchmarking of Minnesota dairy herd improvement association records and analysis of the transition period with an automatic milking system.” 2011. Masters Thesis, University of Minnesota. Accessed February 17, 2020. http://purl.umn.edu/117050.

MLA Handbook (7^th Edition):

Leuer, Robert Francis. “Benchmarking of Minnesota dairy herd improvement association records and analysis of the transition period with an automatic milking system.” 2011. Web. 17 Feb 2020.

Vancouver:

Leuer RF. Benchmarking of Minnesota dairy herd improvement association records and analysis of the transition period with an automatic milking system. [Internet] [Masters thesis]. University of Minnesota; 2011. [cited 2020 Feb 17]. Available from: http://purl.umn.edu/117050.

Council of Science Editors:

Leuer RF. Benchmarking of Minnesota dairy herd improvement association records and analysis of the transition period with an automatic milking system. [Masters Thesis]. University of Minnesota; 2011. Available from: http://purl.umn.edu/117050

6. Kerns, Kaleigh. Determining the Relationship Between PH and Instrumental Color Measurements to Predict Water-Holding Capacity and Sensory Juiciness.

Degree: MS, Animal Science, 2015, South Dakota State University

URL: http://openprairie.sdstate.edu/etd/1828

► The objective of this study was to determine if a relationship between objective color, pH, and water-holding capacity (WHC) exists. Minolta color (L*, a*,… (more)

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Kerns, K. (2015). Determining the Relationship Between PH and Instrumental Color Measurements to Predict Water-Holding Capacity and Sensory Juiciness. (Masters Thesis). South Dakota State University. Retrieved from http://openprairie.sdstate.edu/etd/1828

Chicago Manual of Style (16^th Edition):

Kerns, Kaleigh. “Determining the Relationship Between PH and Instrumental Color Measurements to Predict Water-Holding Capacity and Sensory Juiciness.” 2015. Masters Thesis, South Dakota State University. Accessed February 17, 2020. http://openprairie.sdstate.edu/etd/1828.

MLA Handbook (7^th Edition):

Kerns, Kaleigh. “Determining the Relationship Between PH and Instrumental Color Measurements to Predict Water-Holding Capacity and Sensory Juiciness.” 2015. Web. 17 Feb 2020.

Vancouver:

Kerns K. Determining the Relationship Between PH and Instrumental Color Measurements to Predict Water-Holding Capacity and Sensory Juiciness. [Internet] [Masters thesis]. South Dakota State University; 2015. [cited 2020 Feb 17]. Available from: http://openprairie.sdstate.edu/etd/1828.

Council of Science Editors:

Kerns K. Determining the Relationship Between PH and Instrumental Color Measurements to Predict Water-Holding Capacity and Sensory Juiciness. [Masters Thesis]. South Dakota State University; 2015. Available from: http://openprairie.sdstate.edu/etd/1828

7. Opdahl, Lee. Identification of Candidate Cellulose Utilizing Bacteria from the Rumen of Beef Cattle, Using Bacterial Community Profiling and Metagenomics.

Degree: MS, Animal Science, 2017, South Dakota State University

URL: http://openprairie.sdstate.edu/etd/1666

► The ruminal microbiome allows ruminant animals to convert cellulosic biomass into food products. A majority of ruminal microorganisms remain uncharacterized due, in part, to… (more)

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Opdahl, L. (2017). Identification of Candidate Cellulose Utilizing Bacteria from the Rumen of Beef Cattle, Using Bacterial Community Profiling and Metagenomics. (Masters Thesis). South Dakota State University. Retrieved from http://openprairie.sdstate.edu/etd/1666

Chicago Manual of Style (16^th Edition):

Opdahl, Lee. “Identification of Candidate Cellulose Utilizing Bacteria from the Rumen of Beef Cattle, Using Bacterial Community Profiling and Metagenomics.” 2017. Masters Thesis, South Dakota State University. Accessed February 17, 2020. http://openprairie.sdstate.edu/etd/1666.

MLA Handbook (7^th Edition):

Opdahl, Lee. “Identification of Candidate Cellulose Utilizing Bacteria from the Rumen of Beef Cattle, Using Bacterial Community Profiling and Metagenomics.” 2017. Web. 17 Feb 2020.

Vancouver:

Opdahl L. Identification of Candidate Cellulose Utilizing Bacteria from the Rumen of Beef Cattle, Using Bacterial Community Profiling and Metagenomics. [Internet] [Masters thesis]. South Dakota State University; 2017. [cited 2020 Feb 17]. Available from: http://openprairie.sdstate.edu/etd/1666.

Council of Science Editors:

Opdahl L. Identification of Candidate Cellulose Utilizing Bacteria from the Rumen of Beef Cattle, Using Bacterial Community Profiling and Metagenomics. [Masters Thesis]. South Dakota State University; 2017. Available from: http://openprairie.sdstate.edu/etd/1666

8. Whitlock, Rebecca. Development of the Immune System in Horses and the Effects of Dietary Yeast Supplementation on Cell Surface Markers, Immunoglobulins, and Fecal Parasitic Egg Counts.

Degree: MS, Animal Science, 2014, South Dakota State University

URL: http://openprairie.sdstate.edu/etd/1602

► Objectives of this study were to elucidate the immune parameters of lineage and activation immune cell surface markers, immunoglobulin production, and tetanus specific immunoglobulin… (more)

▼ Objectives of this study were to elucidate the immune parameters of lineage and activation immune cell surface markers, immunoglobulin production, and tetanus specific immunoglobulin production and fecal egg counts in mares, foals, and adult male horses. The role of yeast supplement, Saccarohmyces cerivisae, on these immune parameters was evaluated. Activation markers CD29, CD44, MHCI, CD11a, CD49d and lineage markers CD4, CD8, and CD21 were analyzed via flow cytometry. In house direct ELISAs were developed to evaluate production of immunoglobulin isotypes IgGb, IgGT, IgGa, IgGc, IgM, IgA, and IgE. Tetanus anti-toxoid ELISAs were developed to determine if yeast supplementation enhances immune response to tetanus booster vaccination. Finally, fecal egg counts were determined through completing fecal floats. Twenty adult male horses were utilized from the South Dakota State University (SDSU) Horse Unit. Ten males served as control (Con Males), while ten received yeast treatment (Trt Males). Blood and fecal samples were collected on days 0, 21, 42, 63, and 84. Yeast supplementation had no effect on percent of lineage and activation markers, immunoglobulin production, tetanus specific immunoglobulins, and fecal egg counts (p>0.05). Six Quarter Horse mares and their foals from the SDSU Horse Unit were utilized over a two year trial. There were four mare/foal pairs per treatment group. Yeast supplementation began 70 days prior to expected foaling date and continued 70 days post foaling. Blood, fecal, and colostrum/milk collections were taken days 0, 0.5, 7, 14, 28, 56 and 70 (foaling = day 0). Yeast supplementation had no effect on percent of lineage and activation markers, colostral immunoglobulins, tetanus-specific immunoglobulins, and fecal egg counts (P>0.05). Treatment had no effect on immunoglobulin production in mares and foals (P>0.05), except IgGb production was greater in FCM compared to FTM (P<0.05). This study provided insight to the phenotype of equine CD4+, CD8+, and CD21+ lymphocytes during development as well as a potential role for dietary yeast regulation of immune function and fecal parasitic eggs. Limited monoclonal antibodies are available for equine immunology research. This experiment discovered additional mAbs to be used within future equine immunology research trials. These mAbs include CD29, CD21, and CD49d. Advisors/Committee Members: Rebecca Belt, Alan Young.

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Whitlock, R. (2014). Development of the Immune System in Horses and the Effects of Dietary Yeast Supplementation on Cell Surface Markers, Immunoglobulins, and Fecal Parasitic Egg Counts. (Masters Thesis). South Dakota State University. Retrieved from http://openprairie.sdstate.edu/etd/1602

Chicago Manual of Style (16^th Edition):

Whitlock, Rebecca. “Development of the Immune System in Horses and the Effects of Dietary Yeast Supplementation on Cell Surface Markers, Immunoglobulins, and Fecal Parasitic Egg Counts.” 2014. Masters Thesis, South Dakota State University. Accessed February 17, 2020. http://openprairie.sdstate.edu/etd/1602.

MLA Handbook (7^th Edition):

Whitlock, Rebecca. “Development of the Immune System in Horses and the Effects of Dietary Yeast Supplementation on Cell Surface Markers, Immunoglobulins, and Fecal Parasitic Egg Counts.” 2014. Web. 17 Feb 2020.

Vancouver:

Whitlock R. Development of the Immune System in Horses and the Effects of Dietary Yeast Supplementation on Cell Surface Markers, Immunoglobulins, and Fecal Parasitic Egg Counts. [Internet] [Masters thesis]. South Dakota State University; 2014. [cited 2020 Feb 17]. Available from: http://openprairie.sdstate.edu/etd/1602.

Council of Science Editors:

Whitlock R. Development of the Immune System in Horses and the Effects of Dietary Yeast Supplementation on Cell Surface Markers, Immunoglobulins, and Fecal Parasitic Egg Counts. [Masters Thesis]. South Dakota State University; 2014. Available from: http://openprairie.sdstate.edu/etd/1602

9. Parham, Jamie Tart. Partially Accounting for Discovery Bias in Genomic Selection by Conditioning Out Subsets of the Population During Training.

Degree: MS, Animal Science, 2015, South Dakota State University

URL: http://openprairie.sdstate.edu/etd/1780

► Since genomic selection was introduced, there have been many statistical methods proposed to calculate accurate genomic enhanced EBV (GE-EBV) for a population of animals.… (more)

▼ Since genomic selection was introduced, there have been many statistical methods proposed to calculate accurate genomic enhanced EBV (GE-EBV) for a population of animals. However, accuracies of these methods are inconsistent and do not transpose across populations. One possible reason for this inconsistency is the presence of discovery bias as a consequence of weighting within genomic evaluations. The objective of this project was to create a new statistical method with which to calculate GE-EBV that sufficiently accounts for discovery bias, returning accuracies closer to expected true accuracy of the evaluation. Breeding values were calculated for 2,600 terminal progeny grouped into 107 sire groups first for a full model and then for a model removing one sire group at a time. True breeding values for each model were simulated from 35 moderate frequency (q = 0.29- 0.30) QTN. Marker effects of those QTN were simulated following three different models, constant (CON), randomized-half constant (HALF), and double exponential (DE), with DE being extensively reported. These effects were then used to calculate EBV and corrected EBV (CEBV) of the animals using 2,486 SNP. Results across simulations show that removing sire groups and estimating their breeding values decreases the realized accuracy of CEBV (r = 0.620 ± 0.007) past that of the correlation of TBV with phenotype (r = 0.668 ± 0.008). The overestimated model derived accuracies of both viii CEBV (r = 0.954 ± 7.59e-5) and EBV (r = 0.960 ± 7.11e-5) suggest the susceptibility of similar models to discovery bias. However, the model derived accuracy of CEBV did not decrease by enough to successfully account for discovery bias. Once EBV and CEBV were estimated, they were incorporated into a two trait model separately, along with phenotype, to estimate genomically enhanced estimated breeding values (GE-EBV). Realized accuracies for both GE-EBV and GE-CEBV increased while model derived accuracies only decreased for GE-CEBV. The two trait analysis of CEBV proved to be a successful method to partially account for discovery bias in genomic evaluations where markers are weighted. However, future research is necessary to establish methodology that will fully account for discovery bias in genomic selection. Advisors/Committee Members: R.M. Thallman.

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Parham, J. T. (2015). Partially Accounting for Discovery Bias in Genomic Selection by Conditioning Out Subsets of the Population During Training. (Masters Thesis). South Dakota State University. Retrieved from http://openprairie.sdstate.edu/etd/1780

Chicago Manual of Style (16^th Edition):

Parham, Jamie Tart. “Partially Accounting for Discovery Bias in Genomic Selection by Conditioning Out Subsets of the Population During Training.” 2015. Masters Thesis, South Dakota State University. Accessed February 17, 2020. http://openprairie.sdstate.edu/etd/1780.

MLA Handbook (7^th Edition):

Parham, Jamie Tart. “Partially Accounting for Discovery Bias in Genomic Selection by Conditioning Out Subsets of the Population During Training.” 2015. Web. 17 Feb 2020.

Vancouver:

Parham JT. Partially Accounting for Discovery Bias in Genomic Selection by Conditioning Out Subsets of the Population During Training. [Internet] [Masters thesis]. South Dakota State University; 2015. [cited 2020 Feb 17]. Available from: http://openprairie.sdstate.edu/etd/1780.

Council of Science Editors:

Parham JT. Partially Accounting for Discovery Bias in Genomic Selection by Conditioning Out Subsets of the Population During Training. [Masters Thesis]. South Dakota State University; 2015. Available from: http://openprairie.sdstate.edu/etd/1780

10. Taylor, Anna Rose. The Effects of Maternal Energy Restriction During Mid-Gestation on Growth Performance, Immune Function, and Gene Expression in the Resultant Beef Offspring.

Degree: PhD, Animal Science, 2014, South Dakota State University

URL: http://openprairie.sdstate.edu/etd/1596

► Fetal or developmental programming evaluates the effects of maternal alterations on the developing fetus and the potential consequences later in life. To understand the… (more)

▼ Fetal or developmental programming evaluates the effects of maternal alterations on the developing fetus and the potential consequences later in life. To understand the effects of mid-gestation energy restriction on beef cows and their calves the objectives of this dissertation were to determine the effects of dietary energy restriction on measurements associated with cow energy status, and the effects on growth performance, the humoral immune response, and subcutaneous adipose tissue gene expression in the resultant beef offspring. Pregnant beef cows were allotted into 2 treatment groups during mid-gestation: 1) fed at maintenance (Positive Energy Status (PES)); or 2) fed just below maintenance (Negative Energy Status (NES)). Cows were evaluated for parameters reflective of cow energy status. Positive energy status cows maintained or gained condition where the NES cows lost condition during the mid-gestation treatment period, indicating the intended treatment was met. Progeny were evaluated for growth performance characteristics from birth through the finishing phase. Birth weight was decreased in NES heifer calves (P<0.05). At weaning heifers from NES cows had a tendency (P<0.10) to be lighter than heifers from PES cows. There was a tendency (P<0.10) for PES cows to wean heavier calves compared to NES cows. These results suggest NES during mid-gestation may affect birth weight and weaning weight. These differences in weight are overcome during the feeding phase. Progeny were vaccinated against a novel antigen to measure the humoral immune response. There was a difference (P<0.05) over time with calves from PES cows having a greater antibody titer to the antigen than calves from NES cows. These results suggest cows in a NES during mid-gestation produce calves with a decreased ability to produce antibodies to a novel antigen and thus a decreased humoral immune response. Progeny were selected to evaluate gene expression related to adipose tissue deposition. No differences in gene expression were detected in the weaning or final subsample (P>0.05). Two genes important in adipose differentiation had a tendency (P<0.10) to be different in the weaning subsample. These results suggest NES during mid-gestation may alter adipose differentiation around weaning, but not later in life. Advisors/Committee Members: Amanda Blair.

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Taylor, A. R. (2014). The Effects of Maternal Energy Restriction During Mid-Gestation on Growth Performance, Immune Function, and Gene Expression in the Resultant Beef Offspring. (Doctoral Dissertation). South Dakota State University. Retrieved from http://openprairie.sdstate.edu/etd/1596

Chicago Manual of Style (16^th Edition):

Taylor, Anna Rose. “The Effects of Maternal Energy Restriction During Mid-Gestation on Growth Performance, Immune Function, and Gene Expression in the Resultant Beef Offspring.” 2014. Doctoral Dissertation, South Dakota State University. Accessed February 17, 2020. http://openprairie.sdstate.edu/etd/1596.

MLA Handbook (7^th Edition):

Taylor, Anna Rose. “The Effects of Maternal Energy Restriction During Mid-Gestation on Growth Performance, Immune Function, and Gene Expression in the Resultant Beef Offspring.” 2014. Web. 17 Feb 2020.

Vancouver:

Taylor AR. The Effects of Maternal Energy Restriction During Mid-Gestation on Growth Performance, Immune Function, and Gene Expression in the Resultant Beef Offspring. [Internet] [Doctoral dissertation]. South Dakota State University; 2014. [cited 2020 Feb 17]. Available from: http://openprairie.sdstate.edu/etd/1596.

Council of Science Editors:

Taylor AR. The Effects of Maternal Energy Restriction During Mid-Gestation on Growth Performance, Immune Function, and Gene Expression in the Resultant Beef Offspring. [Doctoral Dissertation]. South Dakota State University; 2014. Available from: http://openprairie.sdstate.edu/etd/1596

11. Webb, Megan Jean. Influence of Production System on Animal Performance, Carcass Characteristics, Meat Quality, Environmental Impacts, Production Economics, and Consumer Preference for Beef.

Degree: 2018, South Dakota State University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10748940

► The overall objective of this study was to determine if the level of growth promotant technology used among production systems influence animal and carcass… (more)

▼ The overall objective of this study was to determine if the level of growth promotant technology used among production systems influence animal and carcass performance, meat quality, production economics, the environmental impact, and determine consumer preferences and perception. Angus Х Simmental steer calves (n =120) were stratified by birth date, birth weight, and dam age in a completely randomized design and assigned to one of four treatments: 1) no antibiotics (NA, receiving no technology); 2) non-hormone treated (NHTC, fed monensin and tylosin); 3) implant (IMPL, administered a series of three implants), and 4) implant plus fed a beta-agonist (IMBA, administered the same implant strategy as IMPL plus, fed ractopamine-HCI for the last 30 d prior to harvest). Animal weight, production expenses, and environmental factor data were collected from the production segments including: cow-calf, backgrounding, and finishing. During the finishing segment, animal feed intake, average daily gain (ADG), and efficiency was obtained. Carcass meat quality and yield performace was assessed. Striploins were collected for analyses post fabrication. Steaks were designated to specific postmortem aging periods, utilized for Warner-Bratzler shear force (WBSF), crude fat, and consumer sensory analyses. The consumer analyses evaluated beef production system information undisclosed and disclosed or simiply, without and later with information to assess palatability only, perception only, and perception plus palatability among untrained consumer panelists. IMPL had the greatest (P < 0.01) ADG and gain to feed (G:F). The final calculated body weight and hot carcass weight was similar (P > 0.05) and heavier (P < 0.01) for IMPL and IMBA in comparison to NA and NHTC, which were similar (P > 0.05). The actual branded carcass value was similar ( P > 0.01) for NA and IMPL and greater (P < 0.05) than NHTC and IMBA, which was similar (P > 0.05). Excluding the cost of the calf, production costs were similar (P > 0.05) and lowest (P < 0.05) for NA and IMPL, NHTC was intermediate (P < 0.05), and IMBA had the greatest ( P < 0.05) production cost. Net return was similar (P > 0. 01) between NA and IMPL, which was greater (P < 0.01) than NHTC and IMBA, which were similar (P > 0.01). In the environmental analysis, IMPL reduced GHG (CO₂e/kg HCW) emissions by 8%, energy use (MJ/kg HCW) by 6%, water use (kg H₂O/kg HCW) by 6%, and reactive N loss (g N/kg HCW) by 6%. The IMBA reduced GHG emissions by 7%, energy use by 3%, and reactive N loss by 1%. Meat quality analyses for marbling score and crude fat among NA and NHTC did not differ (P > 0.05) but were greater (P < 0.05) than IMPL and IMBA, which were similar (P > 0.05) and lower in crude fat. Steaks from NA and NHTC did not differ (P > 0.05) for WBSF though were more tender (P ≤ 0.05) than…

Subjects/Keywords: Animal sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Webb, M. J. (2018). Influence of Production System on Animal Performance, Carcass Characteristics, Meat Quality, Environmental Impacts, Production Economics, and Consumer Preference for Beef. (Thesis). South Dakota State University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10748940

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Webb, Megan Jean. “Influence of Production System on Animal Performance, Carcass Characteristics, Meat Quality, Environmental Impacts, Production Economics, and Consumer Preference for Beef.” 2018. Thesis, South Dakota State University. Accessed February 17, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=10748940.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Webb, Megan Jean. “Influence of Production System on Animal Performance, Carcass Characteristics, Meat Quality, Environmental Impacts, Production Economics, and Consumer Preference for Beef.” 2018. Web. 17 Feb 2020.

Vancouver:

Webb MJ. Influence of Production System on Animal Performance, Carcass Characteristics, Meat Quality, Environmental Impacts, Production Economics, and Consumer Preference for Beef. [Internet] [Thesis]. South Dakota State University; 2018. [cited 2020 Feb 17]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10748940.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Webb MJ. Influence of Production System on Animal Performance, Carcass Characteristics, Meat Quality, Environmental Impacts, Production Economics, and Consumer Preference for Beef. [Thesis]. South Dakota State University; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10748940

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Minnesota

12. Evink, Tyler Lee. Management, economics, and animal welfare characteristics of large dairy operations in the Upper Midwest.

Degree: MS, Animal sciences, 2014, University of Minnesota

URL: http://hdl.handle.net/11299/166753

Current trends in the dairy industry are for fewer, larger farms. This trend has more recently been continuing in the Midwest United States. Therefore, the purpose of this thesis was to describe and characterize common management practices, economics, and animal welfare on large dairy operations in the Midwest.

Subjects/Keywords: Animal sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Evink, T. L. (2014). Management, economics, and animal welfare characteristics of large dairy operations in the Upper Midwest. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/166753

Chicago Manual of Style (16^th Edition):

Evink, Tyler Lee. “Management, economics, and animal welfare characteristics of large dairy operations in the Upper Midwest.” 2014. Masters Thesis, University of Minnesota. Accessed February 17, 2020. http://hdl.handle.net/11299/166753.

MLA Handbook (7^th Edition):

Evink, Tyler Lee. “Management, economics, and animal welfare characteristics of large dairy operations in the Upper Midwest.” 2014. Web. 17 Feb 2020.

Vancouver:

Evink TL. Management, economics, and animal welfare characteristics of large dairy operations in the Upper Midwest. [Internet] [Masters thesis]. University of Minnesota; 2014. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/11299/166753.

Council of Science Editors:

Evink TL. Management, economics, and animal welfare characteristics of large dairy operations in the Upper Midwest. [Masters Thesis]. University of Minnesota; 2014. Available from: http://hdl.handle.net/11299/166753

13. Jaqueth, Aubrey Lowrey. Novel Uses of Turfgrasses for Equine Operations.

Degree: 2018, University of Maryland, College Park

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10825868

► Dry lots, or small paddocks bare of vegetation, are commonly used to manage over- conditioned equids in order to restrict the diet by offering… (more)

▼ Dry lots, or small paddocks bare of vegetation, are commonly used to manage over- conditioned equids in order to restrict the diet by offering hay lower in digestible energy and non-structural carbohydrates (NSC) compared to unrestricted pasture access. However, the lack of vegetation in dry lots often caused by overgrazing and heavy traffic has been associated with negative environmental impacts such as soil erosion. Turfgrasses may be suitable as ground cover in dry lots because they are tolerant of traffic and close mowing (e.g. grazing) and may be low to moderate in both yield and NSC. The objective of this body of work was to 1) characterize the prevalence of over-conditioned equids in MD and whether dry lots were being used for their management, and 2) to assess the relative traffic tolerance, nutritional composition, and palatability of commercially available seeded cultivars of cool- season (CS) and warm-season (WS) turfgrasses for their potential use on horse farms. An online survey of licensed stable operators revealed that ~ 40% of horses in MD were over-conditioned and feeding hay in dry lots was a preferred practice despite requiring more maintenance and management time. Two additional studies evaluating wear tolerance of 8 CS and 6 WS cultivars exposed to either no, low, or high simulated horse traffic found that soil compaction increased as treatment level increased in CS and WS traffic trials (P <0.0001). Persistence was reduced in response to traffic in CS cultivars (P = 0.0003), but not in WS cultivars. Overall, tall fescue and zoysiagrass cultivars were most traffic tolerant, but only zoysiagrass had a more ideal NSC concentration. In the final study, horses exhibited no grazing preference among CS cultivars, whereas among WS cultivars they prefered common bermudagrass and crabgrass (P < 0.02). Several cultivars, including Maestro and Regenerate tall fescue, Zenith zoysiagrass, and Riviera bermudagrass cultivars were closest to meeting desired goals of being traffic tolerant, moderate in yield, and relatively low in NSC, and are thus recommended to be evaluated in future studies for on-farm persistence in dry lots and heavy use areas and for long-term effects of grazing by equids.

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Jaqueth, A. L. (2018). Novel Uses of Turfgrasses for Equine Operations. (Thesis). University of Maryland, College Park. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10825868

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jaqueth, Aubrey Lowrey. “Novel Uses of Turfgrasses for Equine Operations.” 2018. Thesis, University of Maryland, College Park. Accessed February 17, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=10825868.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jaqueth, Aubrey Lowrey. “Novel Uses of Turfgrasses for Equine Operations.” 2018. Web. 17 Feb 2020.

Vancouver:

Jaqueth AL. Novel Uses of Turfgrasses for Equine Operations. [Internet] [Thesis]. University of Maryland, College Park; 2018. [cited 2020 Feb 17]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10825868.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jaqueth AL. Novel Uses of Turfgrasses for Equine Operations. [Thesis]. University of Maryland, College Park; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10825868

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Purdue University

14. Jones, Aaron M. Management effects on the environmental footprint of swine production.

Degree: MS, Animal Science, 2015, Purdue University

URL: http://docs.lib.purdue.edu/open_access_theses/492

► Livestock production in general is a very small contributor to GHG emissions. However, swine producers will continually be faced with a series of challenges… (more)

▼ Livestock production in general is a very small contributor to GHG emissions. However, swine producers will continually be faced with a series of challenges to minimize the environmental impact of swine production. The main objectives of the the studies in this thesis were to evaluate the effects of reducing dietary CP with the supplementation of synthetic AA and the effects of feeding diets with or without antibiotics on manure generation and excretion of N and C. In Exp. 1, thirty-two barrows were used in a metabolism study to evaluate the effect of feeding reduced CP, amino acid (AA) supplemented diets on nutrient excretion. Pigs were assigned to one of four dietary treatments: 1) Control: Corn-SBM-DDGS diets with no synthetic AA, 2) 1X reduction in CP, 3) 2X reduction in CP, and 4) 3X reduction in CP. Diet 4 was balanced on the 7th limiting AA, phenylalanine. Diets 2 and 3 were then formulated to have a stepwise reduction in CP between Diets 1 and 4. Diets 2-4 were supplemented with synthetic amino acids as needed to meet amino acid needs based on NRC 2012 AA minimum ratios for the 7 age phases tested. Low-CP AA supplemented diets significantly reduce N excretion by up to 45%. In addition, VFA concentrations were reduced between 9-17% when dietary CP content was reduced up to 3X levels. Overall fecal C excreted (g/pig/d) was greatest for the lowest CP (3X), largely due to the % C digested being the lowest for that diet. Both DE and ME, were linearly (P < 0.0001) decreased by approximately 6 and 5% respectively with increasing reductions in dietary CP. In Exp. 2, seven hundred twenty-three pigs were placed into eleven identical, environmentally controlled rooms for a wean-to-finish study. Pigs were allotted to one of two dietary treatments: 1) Control: Corn-SBM-DDGS diets with Antibiotics, and 2) Antibiotic Free; treatment 1 less the antibiotics but with alternative supplements. Diets were fed in nine dietary phases. There was a tendency for greater final BW and BW gain per manure pit when pigs were fed the control antibiotic treatment. No significant differences were observed between the two dietary treatments for manure volume (L), manure volume per kg BW gain, DM (g/kg BW gain), N (g/kg BW gain), and AmmN (g/kg BW gain). Manure pH tended to be lower for pigs fed the antibiotic free diet (P < 0.06) compared to the control diet. There were no differences observed for manure total C (kg), manure C per kg BW gain, manure C g/pig/d, and manure C g/pig wean-to-finish. In summary, Exp. 1 low CP diets with synthetic AA supplementation result in lower DE and ME values and C digestibility for the lowest CP diets, but significantly reduce N and VFA excretions. In Exp. 2, the antibiotic free diets had similar manure nutrient excretion and generation with lower manure pH which may affect transformation of N2O during manure land application. The adoption of technologies like these evaluated in this thesis will be of the utmost importance in remaining proactive in finding a way to meet the demands of a growing world… Advisors/Committee Members: Brian T Richert, Brian T Richert, John S Radcliffe, Brad C Joern, Tamillee Nennich.

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jones, A. M. (2015). Management effects on the environmental footprint of swine production. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/492

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jones, Aaron M. “Management effects on the environmental footprint of swine production.” 2015. Thesis, Purdue University. Accessed February 17, 2020. http://docs.lib.purdue.edu/open_access_theses/492.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jones, Aaron M. “Management effects on the environmental footprint of swine production.” 2015. Web. 17 Feb 2020.

Vancouver:

Jones AM. Management effects on the environmental footprint of swine production. [Internet] [Thesis]. Purdue University; 2015. [cited 2020 Feb 17]. Available from: http://docs.lib.purdue.edu/open_access_theses/492.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jones AM. Management effects on the environmental footprint of swine production. [Thesis]. Purdue University; 2015. Available from: http://docs.lib.purdue.edu/open_access_theses/492

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Purdue University

15. Zazai, Noorjan. Evaluation of nutritional traits of soy protein concentrate (SPC) in broiler chicks and turkey poults.

Degree: MS, Animal Science, 2015, Purdue University

URL: http://docs.lib.purdue.edu/open_access_theses/635

► The objectives of this study were to determine the apparent metabolizable energy (AME), nitrogen corrected AME (AME_n) of soy protein concentrate (SPC), and standardized… (more)

▼ The objectives of this study were to determine the apparent metabolizable energy (AME), nitrogen corrected AME (AME_n) of soy protein concentrate (SPC), and standardized ileal amino acid digestibility (SIAAD) of (SPC) and dehulled soybean meal (SBM) in broiler and turkey poults. Soy protein concentrate and SBM was the only source of CP in their respective semi-purified diets used for estimating SIAAD in 7 and 21 d-old broiler chicken and turkey poults. Two experiments (Exp 1 and 2) were conducted with 6 replicate cages of 20 (d 7) and 6 (d 21) birds/cage. In Exp.1, experimental diets containing 0, 7, 14, and 21% of SPC replaced the energy contributing ingredients in the diet. Excreta were collected from d 5 to 7 and d 19 to 21, frozen, and dried. In Exp. 2, two semi-purified diets were formulated to contain 20% CP. Experimental diets were fed for 5 d (d 2 to 7) and (d 16 to 21) and ileal digesta was collected on d 7 and 21.In Exp.1, increasing dietary SPC had no effect on AME or nitrogen-corrected AME (AME_n) at 7 d of age in broiler chicken. However, increasing SPC linearly improved AME (P=0.002) and AME_n (P=0.019) at 21 d. The AME and AME_n for SPC containing diets based on linear regression was 2,784 and 2,622 Kcal/Kg at 7 and 3,676 and 3,473 kcal/kg at 21 d, respectively. In Exp. 2, apparent DM and N digestibility for SPC and SBM based diet increased (P=0.0001) from d 7 to 21. There was a soy source by age interaction (P<0.05) for SIAAD, where SBM digestibility increased only slightly from d 7 to 21, while digestibility of SPC increased quite remarkably. In turkey poults, increasing SPC linearly improved AME and AME_n on d 7 and 21 (P ≤ 0.028). The AME and AME_n for SPC containing diets based on linear regression was 3,385 and 3,152 at 7 and 3,666 and 3,409 on d 21, respectively. In Exp. 2, apparent DM digestibility for SPC-and SBM-based diets were not significantly different between ages (P >0.10) and diets (P=0.097). Apparent N digestibility was different between ages (P<0.05) but not different between diets (P>0.10) with no age by diet interaction. The SIAAD were not significantly different between ages and diets. ^ In conclusion, replacing the energy contributing ingredients of a corn/SBM basal diet with graded levels of SPC resulted in significant improvement in AME and AME_n in both broiler chicks (21d) and turkey poults (7 and 21d). SBM has a slightly higher SIAAD compared to SPC in broiler chicks and the digestibility of DM, N, and amino acids were substantially less at 7 versus 21 d of age. In turkey poults, the amino acid content of SPC was well utilized by the young poults compared to the broiler chicken. Nevertheless, SPC has considerably higher energy and amino acid density than SBM in both species. Advisors/Committee Members: Todd J Applegate, Todd J Applegate, Jon Schoonmaker, Tamilee Nennich.

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Zazai, N. (2015). Evaluation of nutritional traits of soy protein concentrate (SPC) in broiler chicks and turkey poults. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/635

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zazai, Noorjan. “Evaluation of nutritional traits of soy protein concentrate (SPC) in broiler chicks and turkey poults.” 2015. Thesis, Purdue University. Accessed February 17, 2020. http://docs.lib.purdue.edu/open_access_theses/635.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zazai, Noorjan. “Evaluation of nutritional traits of soy protein concentrate (SPC) in broiler chicks and turkey poults.” 2015. Web. 17 Feb 2020.

Vancouver:

Zazai N. Evaluation of nutritional traits of soy protein concentrate (SPC) in broiler chicks and turkey poults. [Internet] [Thesis]. Purdue University; 2015. [cited 2020 Feb 17]. Available from: http://docs.lib.purdue.edu/open_access_theses/635.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zazai N. Evaluation of nutritional traits of soy protein concentrate (SPC) in broiler chicks and turkey poults. [Thesis]. Purdue University; 2015. Available from: http://docs.lib.purdue.edu/open_access_theses/635

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

16. Zhang, Chen. Differential expression of Agouti-related Peptide in Avian Species and the Association of Appetite-related Neuropeptides with Nutrition Status.

Degree: MS, Animal Sciences, 2013, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1367518755

► In the poultry industry, the level of feed consumption plays an important role in determining the rate of growth and body composition achieved by animals.… (more)

▼ In the poultry industry, the level of feed consumption plays an important role in determining the rate of growth and body composition achieved by animals. Especially for economic species, broiler and turkey, properly increasing feed intake and then elevating growth rate as well as body weight are among the critical goals for the benefit of producers. Therefore, the understanding of the regulatory mechanism of feed intake in the food animal species is of great importance, which is helpful in providing potential nutritional methods to overcome the negative environmental effects and to achieve the improvement of related animal production. The metabolism of food intake regulation is highly conserved along the evolution across different species, thus the knowledge gained from this study could also bring insights for the appetite control and the improvement of obesity in human. Agouti-related peptide (AgRP), an orexigenic neuropeptide mainly expressing in the arcuate nucleus, is of great importance in the food intake regulation. It is elevated by states of negative energy balance and is considered as the major indicator of poor nutrition status. Besides AgRP, other hypothalamic neuropeptides including NPY, POMC and CART are sensitive to peripheral nutrition status and regulate feed intake behavior. The studies presented here investigate AgRP in the avian specie, especially focus on the differential expression of alternative transcripts and how nutrition status modulates the amount of appetite-associated neuropeptides in the hypothalamus. Gamma amino-butyric acid (GABA) is a chief inhibitory neurotransmitter in the CNS, whose expression is restricted to the hypothalamus area. It plays a role in regulating neuronal excitability in the arcuate nucleus that is the hypothalamic area in charge of food intake regulation and energy homeostasis. In some feeding studies, GABA is considered as a nutritional supplement in order to overcome negative effects due to heat stress in poultry industry. The presented study aims to understand whether long-term dietary supplementation of GABA in different purity and dosages stimulates feed intake in chickens under normal ambient temperature. This study reported two major transcript isoforms of AgRP in the avian species, also their differential expression patterns in various tissues. These results revealed AgRP-A form to be expressed in all the avian species, while AgRP-B form to be expressed in the chicken and turkey rather than in the quail. The expression patterns of AgRP A- and B form are different from each other in the chicken and turkey, and AgRP-A form is exclusively expressed in the hypothalamus in the quail. Importantly, the results of cloning genomic DNA and cDNA of AgRP in the chicken, turkey and quail as well as our bioinformatics analysis demonstrated that there is a deletion of 521bp in genomic DNA of AgRP-A form in the quail, which results in the absent expression of qAgRP-B form. In order to investigate how the mRNA expressions of neuropeptides change with peripheral nutrition… Advisors/Committee Members: Lee, Kichoon (Advisor).

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Zhang, C. (2013). Differential expression of Agouti-related Peptide in Avian Species and the Association of Appetite-related Neuropeptides with Nutrition Status. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1367518755

Chicago Manual of Style (16^th Edition):

Zhang, Chen. “Differential expression of Agouti-related Peptide in Avian Species and the Association of Appetite-related Neuropeptides with Nutrition Status.” 2013. Masters Thesis, The Ohio State University. Accessed February 17, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1367518755.

MLA Handbook (7^th Edition):

Zhang, Chen. “Differential expression of Agouti-related Peptide in Avian Species and the Association of Appetite-related Neuropeptides with Nutrition Status.” 2013. Web. 17 Feb 2020.

Vancouver:

Zhang C. Differential expression of Agouti-related Peptide in Avian Species and the Association of Appetite-related Neuropeptides with Nutrition Status. [Internet] [Masters thesis]. The Ohio State University; 2013. [cited 2020 Feb 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1367518755.

Council of Science Editors:

Zhang C. Differential expression of Agouti-related Peptide in Avian Species and the Association of Appetite-related Neuropeptides with Nutrition Status. [Masters Thesis]. The Ohio State University; 2013. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1367518755

The Ohio State University

17. Cheng, Yang. Proteomic analysis of 1-D Sarcoplasmic Protein Profiles of Pekin Duck Embryos’ Pectoralis Muscle as Influenced by Incubation Temperature.

Degree: MS, Animal Sciences, 2014, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1407854892

► The objective of this study was to identify sarcoplasmic proteins responsive to incubation temperature in Pekin duck embryos. Previous studies reported that a 1-degree Celsius… (more)

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Cheng, Y. (2014). Proteomic analysis of 1-D Sarcoplasmic Protein Profiles of Pekin Duck Embryos’ Pectoralis Muscle as Influenced by Incubation Temperature. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1407854892

Chicago Manual of Style (16^th Edition):

Cheng, Yang. “Proteomic analysis of 1-D Sarcoplasmic Protein Profiles of Pekin Duck Embryos’ Pectoralis Muscle as Influenced by Incubation Temperature.” 2014. Masters Thesis, The Ohio State University. Accessed February 17, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407854892.

MLA Handbook (7^th Edition):

Cheng, Yang. “Proteomic analysis of 1-D Sarcoplasmic Protein Profiles of Pekin Duck Embryos’ Pectoralis Muscle as Influenced by Incubation Temperature.” 2014. Web. 17 Feb 2020.

Vancouver:

Cheng Y. Proteomic analysis of 1-D Sarcoplasmic Protein Profiles of Pekin Duck Embryos’ Pectoralis Muscle as Influenced by Incubation Temperature. [Internet] [Masters thesis]. The Ohio State University; 2014. [cited 2020 Feb 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1407854892.

Council of Science Editors:

Cheng Y. Proteomic analysis of 1-D Sarcoplasmic Protein Profiles of Pekin Duck Embryos’ Pectoralis Muscle as Influenced by Incubation Temperature. [Masters Thesis]. The Ohio State University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1407854892

Purdue University

18. Zhang, Fengrui. Digestibility of Calcium in Feed Ingredients and Digestible Calcium Requirements for Pigs.

Degree: 2018, Purdue University

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10635881

► The objective of this research was to compare different expressions for the digestibility of Ca in both pigs and chickens, and to determine the… (more)

▼ The objective of this research was to compare different expressions for the digestibility of Ca in both pigs and chickens, and to determine the true total tract digestible (TTTD) Ca requirement for 10- to 20-kg and 20- to 40-kg pigs. In the first study, two experiments were conducted to compare apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of Ca in pigs. In Exp. 1, three semi-purified diets with soybean meal, canola meal or sunflower meal as the sole source of Ca were formulated. Eighteen cannulated pigs (initial BW = 66 ± 5 kg) were assigned in a randomized complete block design to 3 treatments and 6 replicates per treatment. Results indicated that for either Ca or P, the ATTD was not different from AID in three diets. In Exp. 2, diets with four Ca concentrations were formulated with calcium carbonate as the Ca source. Sixteen cannulated pigs (initial BW = 73 ± 4 kg) were assigned in a randomized complete block design to 4 treatments in 2 experimental periods. The results indicated that the ATTD of Ca was not different from AID for all diets, and the Ca digestibility was not affected by the dietary Ca concentration. The results of these two experiments indicated that both AID and ATTD can be used to describe the digestibility of Ca for growing-finishing pigs. Total tract digestibility was used to express digestibility of Ca in later studies. A second series of studies was conducted to decide whether ATTD or TTTD should be used to estimate Ca digestibility of limestone and dicalcium phosphate (DCP). Two pig experiments were conducted to determine the ATTD and TTTD of limestone and DCP, and their additivity in a semi-purified diet for pigs. In Exp. 1, forty eight barrows with an average initial BW of 19.2 ± 1.1 kg were assigned to 1 of 6 dietary treatments in a 2 × 3 factorial arrangement of two Ca sources, including limestone or DCP, with three dietary Ca concentrations each. Diets were fed for a 5-d adjustment period followed by a total collection period of 5 d. The results indicated that the increased dietary Ca concentration linearly increased Ca intake, digested and retained, but did not affect the ATTD of Ca when using limestone and DCP as Ca sources. In Exp. 2, seventy-two barrows with an average initial BW of 20.8 ± 1.3 kg were used to test the additivity of TTTD for Ca in limestone and dicalcium phosphate (DCP) in pigs. All pigs were assigned to 1 of 9 dietary treatments in a 3 × 3 factorial arrangement of three Ca sources, including limestone, DCP, or a mixed diet at a ratio of 1:1; and three dietary Ca concentrations. Feeding and sample collection procedures were as in Exp. 1. The results indicated that the average ATTD were 66.46, 70.34, and 69.32% for limestone, DCP, and their mixed diet, respectively. By regressing daily digested Ca against daily Ca intake, the TTTD of Ca was determined at 70.06, 76.42, and 73.72% for limestone, DCP, and their mixed diet, respectively. The endogenous losses of was estimated…

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Zhang, F. (2018). Digestibility of Calcium in Feed Ingredients and Digestible Calcium Requirements for Pigs. (Thesis). Purdue University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10635881

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Fengrui. “Digestibility of Calcium in Feed Ingredients and Digestible Calcium Requirements for Pigs.” 2018. Thesis, Purdue University. Accessed February 17, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=10635881.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Fengrui. “Digestibility of Calcium in Feed Ingredients and Digestible Calcium Requirements for Pigs.” 2018. Web. 17 Feb 2020.

Vancouver:

Zhang F. Digestibility of Calcium in Feed Ingredients and Digestible Calcium Requirements for Pigs. [Internet] [Thesis]. Purdue University; 2018. [cited 2020 Feb 17]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10635881.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang F. Digestibility of Calcium in Feed Ingredients and Digestible Calcium Requirements for Pigs. [Thesis]. Purdue University; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10635881

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

19. Heldt, Katherine. INDIVIDUAL BEHAVIORAL VARIATION OF JUVENILE SPINY LOBSTER (Panulirus argus) DENNING BEHAVIORS AND THE ROLE IT PLAYS IN SHELTER COMPETITION DURING HABITAT LOSS.

Degree: MS, Biological Sciences, 2013, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/1714

► Variation in juvenile spiny lobster (Panulirus argus) aggressive and gregarious behaviors may play an important role in structuring population level interactions. Since aggressive and… (more)

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Heldt, K. (2013). INDIVIDUAL BEHAVIORAL VARIATION OF JUVENILE SPINY LOBSTER (Panulirus argus) DENNING BEHAVIORS AND THE ROLE IT PLAYS IN SHELTER COMPETITION DURING HABITAT LOSS. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/1714

Chicago Manual of Style (16^th Edition):

Heldt, Katherine. “INDIVIDUAL BEHAVIORAL VARIATION OF JUVENILE SPINY LOBSTER (Panulirus argus) DENNING BEHAVIORS AND THE ROLE IT PLAYS IN SHELTER COMPETITION DURING HABITAT LOSS.” 2013. Masters Thesis, Clemson University. Accessed February 17, 2020. https://tigerprints.clemson.edu/all_theses/1714.

MLA Handbook (7^th Edition):

Heldt, Katherine. “INDIVIDUAL BEHAVIORAL VARIATION OF JUVENILE SPINY LOBSTER (Panulirus argus) DENNING BEHAVIORS AND THE ROLE IT PLAYS IN SHELTER COMPETITION DURING HABITAT LOSS.” 2013. Web. 17 Feb 2020.

Vancouver:

Heldt K. INDIVIDUAL BEHAVIORAL VARIATION OF JUVENILE SPINY LOBSTER (Panulirus argus) DENNING BEHAVIORS AND THE ROLE IT PLAYS IN SHELTER COMPETITION DURING HABITAT LOSS. [Internet] [Masters thesis]. Clemson University; 2013. [cited 2020 Feb 17]. Available from: https://tigerprints.clemson.edu/all_theses/1714.

Council of Science Editors:

Heldt K. INDIVIDUAL BEHAVIORAL VARIATION OF JUVENILE SPINY LOBSTER (Panulirus argus) DENNING BEHAVIORS AND THE ROLE IT PLAYS IN SHELTER COMPETITION DURING HABITAT LOSS. [Masters Thesis]. Clemson University; 2013. Available from: https://tigerprints.clemson.edu/all_theses/1714

Oklahoma State University

20. Winterholler, Sara Jane. Evaluation of Winter Supplementation of Byproduct Feedstuffs for Beef Cows Consuming Low-quality Forage.

Degree: Department of Animal Science, 2009, Oklahoma State University

URL: http://hdl.handle.net/11244/6629

► The expansion of the corn-based ethanol industry has resulted in an abundance of byproduct feeds. Research with these feedstuffs is limited in beef cow/calf production… (more)

▼ The expansion of the corn-based ethanol industry has resulted in an abundance of byproduct feeds. Research with these feedstuffs is limited in beef cow/calf production systems. A series of studies were conducted to evaluate the supplementation of byproduct feedstuffs for beef cows consuming low-quality forage.Delinted, extruded expelled cottonseed meal provides a rich source of degradable intake protein but is moderate in contribution of energy. Similar cow performance, diet intake and digestibility, milk production and composition, and reproductive performance was achieved by supplementation of delinted, extruded-expelled cottonseed meal as compared to traditionally used cottonseed meal-based supplements when formulated for isonitrogenous intake. Dried distiller's grains with solubles is moderate in degradable intake protein and is a rich source of supplemental energy. To determine the appropriate supplementation level of dried distiller's grains with solubles for beef cows consuming low-quality forage, increasing feeding levels of dried distiller's grains were evaluated and compared to a traditional cottonseed meal/wheat middling based supplement. At equal intake of dry matter and crude protein, similar cow performance, diet intake and digestibility, milk production and reproductive performance was achieved for dried distiller's grains as compared to the traditional supplement. Feeding increasing amounts of dried distller's grains with solubles did not negatively influence forage intake or diet digestibility. Results from the studies in this dissertation indicate that byproduct feedstuffs are viable supplement options in beef cow/calf systems. Nutrient composition of byproduct feedstuffs is highly variable and should be analyzed prior to use. Due to fluctuations in feed costs, economic feasibility of using byproduct feedstuffs should compared to traditional feedstuffs. Advisors/Committee Members: Lalman, David L. (advisor), Horn, Gerald W (committee member), Krehbiel, Clinton R (committee member), Doye, Damona Grace (committee member).

Subjects/Keywords: animal sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Winterholler, S. J. (2009). Evaluation of Winter Supplementation of Byproduct Feedstuffs for Beef Cows Consuming Low-quality Forage. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/6629

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Winterholler, Sara Jane. “Evaluation of Winter Supplementation of Byproduct Feedstuffs for Beef Cows Consuming Low-quality Forage.” 2009. Thesis, Oklahoma State University. Accessed February 17, 2020. http://hdl.handle.net/11244/6629.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Winterholler, Sara Jane. “Evaluation of Winter Supplementation of Byproduct Feedstuffs for Beef Cows Consuming Low-quality Forage.” 2009. Web. 17 Feb 2020.

Vancouver:

Winterholler SJ. Evaluation of Winter Supplementation of Byproduct Feedstuffs for Beef Cows Consuming Low-quality Forage. [Internet] [Thesis]. Oklahoma State University; 2009. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/11244/6629.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Winterholler SJ. Evaluation of Winter Supplementation of Byproduct Feedstuffs for Beef Cows Consuming Low-quality Forage. [Thesis]. Oklahoma State University; 2009. Available from: http://hdl.handle.net/11244/6629

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Missouri – Columbia

21. Tamassia, Gabriela V. Development of a Fibroblast Growth Factor 21 Assay.

Degree: 2019, University of Missouri – Columbia

URL: http://pqdtopen.proquest.com/#viewpdf?dispub=13850755

► Obesity and diabetes play a major role in many diseases prevalent in our current society. Fibroblast Growth Factor 21 (FGF21) is a recently discovered… (more)

▼ Obesity and diabetes play a major role in many diseases prevalent in our current society. Fibroblast Growth Factor 21 (FGF21) is a recently discovered hormone that has potential for therapeutic treatment of obesity and diabetes. It acts as a hormone in times of metabolic stress and is shown to stimulate hepatic fatty acid oxidation, ketogenesis, induce weight loss, allow for sustained decrease in plasma glucose and triglycrides, and decrease the growth hormone response. Obese or diabetic individuals often have higher than normal amounts of circulating FGF21; consequently, they may be considered FGF21 resistant. It is then advantageous to have an assay to measure FGF21 that will allow us to study FGF21 further. It is also important to study FGF21 in various livestock species for potential biomarkers, or as indicators of carcass quality that could prove to advance further research. We have developed a working FGF21 assay using an amplified luminescent proximity homogeneous assay (AlphaLISA). It is a homogeneous, no-wash immunoassay with high sensitivity and wide dynamic range. It is a bead based technology that brings two antibodies near each other allowing for an unstable singlet oxygen to trigger a downstream cascade of chemical events leading to a sharp intense chemiluminescent emission that can be read on an EnVision machine. The assay was set up using a ‘sandwich’ design with guinea pig or rabbit anti-bovine FGF21 antibodies attached to the acceptor beads and biotinylated rabbit anti-bovine FGF21 antibodies attached to a streptavidin coated donor bead. The assay has a working range from 0.2- 200 ng/ml. Standard curves in serum from bovine, porcine, rabbit, rat, ewe, fetal bovine has been conducted and assay conditions were optimized for each. Manipulations of the sera were necessary in order to get functional curves. These included diluting it 2 fold or more, depending on the species, and increasing incubation temperatures. The assay can function using both serum and plasma.

Subjects/Keywords: Animal sciences

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APA (6^th Edition):

Tamassia, G. V. (2019). Development of a Fibroblast Growth Factor 21 Assay. (Thesis). University of Missouri – Columbia. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=13850755

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tamassia, Gabriela V. “Development of a Fibroblast Growth Factor 21 Assay.” 2019. Thesis, University of Missouri – Columbia. Accessed February 17, 2020. http://pqdtopen.proquest.com/#viewpdf?dispub=13850755.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tamassia, Gabriela V. “Development of a Fibroblast Growth Factor 21 Assay.” 2019. Web. 17 Feb 2020.

Vancouver:

Tamassia GV. Development of a Fibroblast Growth Factor 21 Assay. [Internet] [Thesis]. University of Missouri – Columbia; 2019. [cited 2020 Feb 17]. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=13850755.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tamassia GV. Development of a Fibroblast Growth Factor 21 Assay. [Thesis]. University of Missouri – Columbia; 2019. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=13850755

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

22. Volpi-Lagreca, Gabriela. Ruminant Supplementation of Gluconeogenic Substrates Via Drinking Water.

Degree: PhD, Animal and Veterinary Sciences, 2016, Clemson University

URL: https://tigerprints.clemson.edu/all_dissertations/2302

► Dark cutting or high pH meat is found in all meat species, inducing significant losses to the meat industry. Dark cutting meat is a… (more)

▼ Dark cutting or high pH meat is found in all meat species, inducing significant losses to the meat industry. Dark cutting meat is a direct consequence of low muscle glycogen at slaughter, which affects the normal acidification of meat during rigor development, hence, the ultimate pH remains high. The ultimate pH of the meat has a great influence on certain meat quality parameters, such as color, water holding capacity, and tenderness. An animal exposed to stress previous to slaughter may significantly depletes its glycogen reserves. This situation leads to a high ultimate pH if the animal is slaughtered before it has sufficient time to replenish their muscle glycogen stores. Due to stress during pre-slaughter handling is an inevitable process, a strategy to mitigate its effect may be increase muscle glycogen levels prior to slaughter. Supplementation of ruminants prior to slaughter with glycerol or fructose as a source of gluconeogenic substrates may improve muscle glycogen concentrations at slaughter and meat quality. However, dietary carbohydrates are extensively fermented in the rumen and less than 10% of the glucose requirement is absorbed from the digestive tract, thus gluconeogenesis must provide around 90% of the total glucose needs in ruminants. It has been shown 60-80% of drinking water bypasses the rumen. Therefore, gluconeogenic substrates supplemented via drinking water may escape microbial fermentation in the rumen and be absorbed in the small intestine to be available for utilization by the tissues. In experiment 1, described in chapter two, Angus-cross steers (n=36) received 4.3% crude glycerin or high fructose corn syrup via drinking water in addition to a high concentrate diet. The objective of this study was to supply substrates for gluconeogenesis and de novo fatty acid synthesis via drinking water to increase marbling and glycogen concentration in the muscle. Overall, crude glycerin or high fructose corn syrup supplementation via drinking water did not alter carcass or meat quality variables but did alter the size and distribution of intramuscular adipocytes. These results indicate that a longer supplementation time or a higher substrate level may be needed in order to obtain differences in meat quality. In experiment 2, described in chapter three, Southdown wether lambs (n=18) were used to investigate the effect of glycerol or fructose at 12% via drinking during 28-d grazing period and 2-d fasting previous to slaughter on animal performance, postmortem glycolysis and pH decline, proximate and fatty acid composition of tissues, and changes in gene expression of enzymes involved in lipid and glucose metabolism in liver. Overall, glycerol supplementation increased ADG during the grazing period, reduced BW shrink during fasting, and increased HCW. Glycerol supplementation favored muscle glycogen at early postmortem times and glycogen content in the liver, decreased lipid mobilization during fastening and upregulated mRNA expression of lipogenic and glucose transport genes in… Advisors/Committee Members: Dr. Susan K. Duckett, Committee Chair, Dr. Scott L. Pratt, Dr. William C. Bridges, Dr. Anibal J. Pordomingo.

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Volpi-Lagreca, G. (2016). Ruminant Supplementation of Gluconeogenic Substrates Via Drinking Water. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2302

Chicago Manual of Style (16^th Edition):

Volpi-Lagreca, Gabriela. “Ruminant Supplementation of Gluconeogenic Substrates Via Drinking Water.” 2016. Doctoral Dissertation, Clemson University. Accessed February 17, 2020. https://tigerprints.clemson.edu/all_dissertations/2302.

MLA Handbook (7^th Edition):

Volpi-Lagreca, Gabriela. “Ruminant Supplementation of Gluconeogenic Substrates Via Drinking Water.” 2016. Web. 17 Feb 2020.

Vancouver:

Volpi-Lagreca G. Ruminant Supplementation of Gluconeogenic Substrates Via Drinking Water. [Internet] [Doctoral dissertation]. Clemson University; 2016. [cited 2020 Feb 17]. Available from: https://tigerprints.clemson.edu/all_dissertations/2302.

Council of Science Editors:

Volpi-Lagreca G. Ruminant Supplementation of Gluconeogenic Substrates Via Drinking Water. [Doctoral Dissertation]. Clemson University; 2016. Available from: https://tigerprints.clemson.edu/all_dissertations/2302

The Ohio State University

23. Zhang, Boyang. Development of Prediction Models of Methane Production by Sheep and Cows Using Rumen Microbiota Data.

Degree: MS, Animal Sciences, 2018, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534524559001648

► Methane emission from the rumen leads to approximately 10 % loss of the ingested energy, at the conversion of digestible to metabolizable energy. Besides research… (more)

▼ Methane emission from the rumen leads to approximately 10 % loss of the ingested energy, at the conversion of digestible to metabolizable energy. Besides research on mitigation of methane emission, much research interests have also been gravitated towards development of prediction models of methane emissions from livestock because the global warming is reducing agriculture productivity (Johnson and Johnson, 1995). An accurate prediction of enteric methane production from cattle and sheep can assist in balancing the increased livestock production with subsequent environmental impacts. Methane is an inevitable byproduct of the microbial fermentation processes in the rumen, and certain ruminal microbes have direct impacts to methane production (Morgavi et al., 2010). Thus, we hypothesized that the inclusion of individual microbial groups as predictor variables could improve the robustness and accuracy of prediction models. However, inclusion of microbial variables into prediction models can result in overfitting. Machine-learning algorithms can automatically select the key explanatory predictors, and Linear Mixed Models can provide a framework to predict random effects describing between animal variations. We proposed three novel frameworks for subset selections of microbial variables (MV) and one framework for generalized linear mixed models (GLMM) using L1-penalization (GLMMLASSO) selection with cross-validations (CV) to address the overfitting problems and to develop parsimonious prediction models of methane production.Methane emission can be expressed as unit methane per animal per d, per unit of dry matter intake (DMI), or per unit of metabolic body weight (MBW) per d. Thus, we developed prediction models based on g CH4/per animal/d (Animal-based models), g CH4/kg DMI (DMI-based models), and g CH4/kg metabolic bodyweight/d (MBW-based models). Two datasets were used: one dataset from a study that compared the rumen microbiota and methane production among sheep in New Zealand, while the other dataset that was collated from two datasets (one generated using dairy cows in Finland, and the other generated using steers in Australia). The cattle datasets were generated from studies that used different anti-methane feed additives to mitigate methane emission. Each dataset contained both animal data and relative sequence abundance (RSA) of genera of rumen microbes including bacteria, methanogens, protozoa, and fungi. Relative abundance of a genus was expressed as % of the sequences assigned to that genus over the total sequences of a marker gene, 16S rRNA gene for bacteria and methanogens, 18S rRNA gene for protozoa, and ITS1 for fungi). Subset and GLMMLASSO selections of MV combined with CV were based on minimal Bayesian information criterion (BIC). Linear mixed effects models were built based on the MV selected. The cross-validation was used to identify the best subset of MV that resulted in the lowest mean square prediction error (MSPE) to include in the prediction models. We also compared our new models with traditional… Advisors/Committee Members: Yu, Zhongtang (Advisor).

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, B. (2018). Development of Prediction Models of Methane Production by Sheep and Cows Using Rumen Microbiota Data. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1534524559001648

Chicago Manual of Style (16^th Edition):

Zhang, Boyang. “Development of Prediction Models of Methane Production by Sheep and Cows Using Rumen Microbiota Data.” 2018. Masters Thesis, The Ohio State University. Accessed February 17, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534524559001648.

MLA Handbook (7^th Edition):

Zhang, Boyang. “Development of Prediction Models of Methane Production by Sheep and Cows Using Rumen Microbiota Data.” 2018. Web. 17 Feb 2020.

Vancouver:

Zhang B. Development of Prediction Models of Methane Production by Sheep and Cows Using Rumen Microbiota Data. [Internet] [Masters thesis]. The Ohio State University; 2018. [cited 2020 Feb 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534524559001648.

Council of Science Editors:

Zhang B. Development of Prediction Models of Methane Production by Sheep and Cows Using Rumen Microbiota Data. [Masters Thesis]. The Ohio State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1534524559001648

Auburn University

24. Windham, Amanda. Detection and monitoring of microbes of concern in animal production environment .

Degree: 2016, Auburn University

URL: http://hdl.handle.net/10415/5331

► An estimated 48 million Americans become ill, 128,000 are hospitalized, and 3,000 die of foodborne illnesses each year, and foodborne illness costs the United States… (more)

▼ An estimated 48 million Americans become ill, 128,000 are hospitalized, and 3,000 die of foodborne illnesses each year, and foodborne illness costs the United States $14.6-16.3 billion annually. Because foodborne illness continues to be costly, in terms of money and health, in the United States, new aspects of food protection are being evaluated including microbial contamination of the crop production environment. This study evaluated two separate aspects of environmental microbial contamination. The first portion of this study evaluated the presence and spread of Salmonella spp. in the environment surrounding the Auburn University Poultry Research Unit. Two Nalidixic acid resistant Salmonella strains were used for tracking the spreading of Salmonella spp. throughout the environment. Nalidixic acid resistant strains were isolated from environmental samples 0.44 km and 0.38 km away from the central location of the poultry farm. This signifies that environmental carriers/factors could contribute to the spreading of Salmonella spp. In addition, Salmonella serogroup B was isolated from 8 out 13 sampling locations throughout a 3-month time span. Serotyping of these isolates showed that they are Salmonella Saintpaul. Pulse Field Gel Electrophoresis (PFGE) was performed and showed that those isolates are genetically identical. The second portion of this study focused on the application of microbial water safety guidelines set forth by the 2016 Food Safety Modernization Act (FSMA): Produce Safety Rule. Six farms in the East Central Alabama area were selected, and water samples were collected once a month from October 13, 2015 to June 20, 2016 from five farms with ponds on them. Four out of the six farms have streams running through them. For these, surface water samples were collected at the site where the stream enters and exits the farm. Each point that was sampled was considered a site, and there were a total of thirteen sites. Following the U.S. Environmental Protection Agency (USEPA) method 1603, generic Escherichia coli were enumerated using modified mTEC agar. Geometric Mean (GM) and Statistical Threshold Value (STV) were calculated using Cornell University’s Produce Safety Alliance Excel tool. Although differences were seen in E. coli numbers from samples collected in different months, based on the calculations, water quality of five sites is in compliance with water quality microbial requirements. Eight sites had GM and/or STV values that did not comply with these standards. However, by using the Excel tool, a die-off period of one day is suggested for seven of them, and a two-day die-off period is suggested for one. For all four streams sampled, the outgoing stream sites did not consistently show higher generic E. coli concentrations than the incoming stream sites. No conclusion can be made at this point about whether animal agriculture has significant impact on microbial surface water quality. However, land use, geographical layout, weather variations, and even surrounding land factors can… Advisors/Committee Members: Wang, Luxin (advisor).

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Windham, A. (2016). Detection and monitoring of microbes of concern in animal production environment . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5331

Chicago Manual of Style (16^th Edition):

Windham, Amanda. “Detection and monitoring of microbes of concern in animal production environment .” 2016. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5331.

MLA Handbook (7^th Edition):

Windham, Amanda. “Detection and monitoring of microbes of concern in animal production environment .” 2016. Web. 17 Feb 2020.

Vancouver:

Windham A. Detection and monitoring of microbes of concern in animal production environment . [Internet] [Masters thesis]. Auburn University; 2016. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5331.

Council of Science Editors:

Windham A. Detection and monitoring of microbes of concern in animal production environment . [Masters Thesis]. Auburn University; 2016. Available from: http://hdl.handle.net/10415/5331

Auburn University

25. Mahler, Lauren. Recommended duration for evaluating feed intake and validating the residual feed intake model in Brangus heifers .

Degree: 2016, Auburn University

URL: http://hdl.handle.net/10415/5461

► In order to determine optimal measurement days, variables best describing variation for dry matter intake (DMI) and effect of residual feed intake (RFI) classification on… (more)

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mahler, L. (2016). Recommended duration for evaluating feed intake and validating the residual feed intake model in Brangus heifers . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5461

Chicago Manual of Style (16^th Edition):

Mahler, Lauren. “Recommended duration for evaluating feed intake and validating the residual feed intake model in Brangus heifers .” 2016. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5461.

MLA Handbook (7^th Edition):

Mahler, Lauren. “Recommended duration for evaluating feed intake and validating the residual feed intake model in Brangus heifers .” 2016. Web. 17 Feb 2020.

Vancouver:

Mahler L. Recommended duration for evaluating feed intake and validating the residual feed intake model in Brangus heifers . [Internet] [Masters thesis]. Auburn University; 2016. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5461.

Council of Science Editors:

Mahler L. Recommended duration for evaluating feed intake and validating the residual feed intake model in Brangus heifers . [Masters Thesis]. Auburn University; 2016. Available from: http://hdl.handle.net/10415/5461

Auburn University

26. Christjohn, Colton. Effects of Acetic Acid on Dark Cutting Beef .

Degree: 2017, Auburn University

URL: http://hdl.handle.net/10415/5571

► An experiment was conducted to evaluate the effects of an acetic acid product e(Lm)inate ® V distributed by Hawkins, Inc. on meat quality attributes of… (more)

▼ An experiment was conducted to evaluate the effects of an acetic acid product e(Lm)inate ® V distributed by Hawkins, Inc. on meat quality attributes of dark cutting beef strip loins. Three treatment application groups: 0.4%, 1.2%, and 1.6% acetic acid were compared to two USDA Select strip loins (RFN) to evaluate meat quality effects such as pH, color, cook loss, drip loss, rancidity, and sensory characteristics. The e(Lm)inate ®V product was buffered to a pH of 5.0 by Hawkins, Inc. Sixteen dark cutting beef strip loins (DFD) were each cut into four sections; one section was denoted as a control and the remaining sections were classified to a corresponding injection percentage following a replicated Latin square design. On day five after fabrication at the harvest facility, strip loins were sectioned and initial color was evaluated using a Hunter Miniscan XE Plus from the anterior end of each section and initial pH was evaluated using a waterproof pH Spear Double Junction meter (Oakton®, Vernon Hills, IL). The strip loins were then vacuum packaged and stored at 4 ± 2°C for an additional day. On day six, an initial weight was recorded for the sections denoted as one of the three injection percentages and injected using a multi needle pickle injector (Koch Günther Pökelinjektoren) and weighed again to obtain a final weight. After sections were injected, strip loin sections were vacuum packaged and stored at 4 ± 2°C for three days. After completion of the storage period, all sections were cut into three individual steaks. Steaks were recorded for 1) for sensory analysis, 2) TBARS and drip loss, and 3) cook loss and WBSF. Final color and pH readings were obtained from each section during this time. Once all readings were recorded, each of the three steaks was vacuum packaged and stored for future use. Steaks assigned for sensory analysis and TBARS were frozen and steaks assigned for cook loss and WBSF were stored at 4 ± 2°C for 3 days. Data were analyzed using the PROC Mixed procedure of SAS. Initial pH (IpH) values were not different for location (P>0.54) or treatment (P>0.68). However, a difference was seen (P<0.05) for initial pH comparing the dark cutting (DFD) loins and normal (RFN) loins (6.04 and 5.59 respectively). Final pH (FpH) values did not differ (P>0.39) for the DFD and RFN loins but there was a difference (P<0.04) between treatments. No differences were seen regarding cook loss (CL). With reference to drip loss (DL), there was a difference (P<0.02) between DFD and RFN loins. DFD loins had a lower drip loss percentage exhibiting the increased water holding capacity in DFD meat. Warner-Bratzler shear force (WBSF) values did not differ for treatment (P>0.48) or DFD and RFN loins (P>0.15); however, there was a difference (P<0.01) in location. Initial L* (IL) values were greater for RFN loins compared to DFD loins (P<0.0003). Initial a* (Ia) values had no effect (P>0.13) on DFD or RFN loins regardless of treatment or location. However, there was a difference (P<0.0003) observed in initial b* (Ib) values… Advisors/Committee Members: Bratcher, Christy (advisor), Mullenix, Kim (committee), Mulvaney, Donald (committee).

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Christjohn, C. (2017). Effects of Acetic Acid on Dark Cutting Beef . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5571

Chicago Manual of Style (16^th Edition):

Christjohn, Colton. “Effects of Acetic Acid on Dark Cutting Beef .” 2017. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5571.

MLA Handbook (7^th Edition):

Christjohn, Colton. “Effects of Acetic Acid on Dark Cutting Beef .” 2017. Web. 17 Feb 2020.

Vancouver:

Christjohn C. Effects of Acetic Acid on Dark Cutting Beef . [Internet] [Masters thesis]. Auburn University; 2017. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5571.

Council of Science Editors:

Christjohn C. Effects of Acetic Acid on Dark Cutting Beef . [Masters Thesis]. Auburn University; 2017. Available from: http://hdl.handle.net/10415/5571

Auburn University

27. Turner, Stephanie. Changes in in vitro fermentative capacity of equine feces due to alteration of forage diet .

Degree: 2017, Auburn University

URL: http://hdl.handle.net/10415/5693

► In vitro digestibility methods require a microbial inoculum source. In hindgut fermenters like equids, cannulation of the cecum is a high-risk procedure and can be… (more)

▼ In vitro digestibility methods require a microbial inoculum source. In hindgut fermenters like equids, cannulation of the cecum is a high-risk procedure and can be avoided by using feces as a microbial inoculum source. The hindgut microbial population can change with an alteration of concentrate and forage ratios in equids. This study’s purpose was to determine if forage type fed to horses providing fecal inoculum alters subsequent in vitro digestibility estimates. Four mature mares were arranged in a 2 × 2 crossover design and used in a 4-wk study using two species of hay fed ad libitum: alfalfa (Medicago sativa) and Coastal bermudagrass (Cynodon dactylon). Each of two periods consisted of 7 d during which the mares were adapted to their respective diets, followed by feeding the experimental forage diet for 7 d. On d 14 of each period, feces were collected via rectal grab from each mare. Fecal samples (200 g) were blended with 400 mL of buffer solution under anaerobic conditions, filtered to remove large particulates, and placed into one of eight DaisyII (ANKOM Technology) incubation vessels. Filter bags were filled with 0.25-g samples of dried, ground alfalfa and bermudagrass to pass a 2-mm screen. Six filled filter bags of a single forage plus 2 blanks were added to each vessel before being flushed with CO2 and sealed for fermentation at 39.5°C. Half of the sample bags were removed at 48 h, and the remaining bags were removed at 72 h. Sample bags were rinsed with cold deionized water and dried at 60°C for 12 h before weighing for determination of percentage dry matter in fermentation residues. Dry matter disappearance (DMD) was calculated, followed by NDF and ADF determination. Using JMP Pro 12 (SAS Inc.), an ANOVA was performed. Significance was declared at P < 0.05. Results from the 48-h fermentation indicated that donor animal diet had no effect on DM, NDF, or ADF digestibility of bermudagrass, but at 72 h, DM digestibility estimates are higher with alfalfa-sourced feces. For alfalfa at 48 and 72 h, DMD, NDF, and ADF digestion were more extensive when fermented in alfalfa-sourced feces than bermudagrass-sourced feces. These results indicate that equids used as microbial inoculum donors for in vitro digestibility evaluations may need to be consuming the forage being studied, but further investigation is required. Advisors/Committee Members: Wagner, Elizabeth (advisor), Muntifering, Russell (committee), Mullenix, Mary (committee).

Subjects/Keywords: Animal Sciences

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APA (6^th Edition):

Turner, S. (2017). Changes in in vitro fermentative capacity of equine feces due to alteration of forage diet . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5693

Chicago Manual of Style (16^th Edition):

Turner, Stephanie. “Changes in in vitro fermentative capacity of equine feces due to alteration of forage diet .” 2017. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5693.

MLA Handbook (7^th Edition):

Turner, Stephanie. “Changes in in vitro fermentative capacity of equine feces due to alteration of forage diet .” 2017. Web. 17 Feb 2020.

Vancouver:

Turner S. Changes in in vitro fermentative capacity of equine feces due to alteration of forage diet . [Internet] [Masters thesis]. Auburn University; 2017. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5693.

Council of Science Editors:

Turner S. Changes in in vitro fermentative capacity of equine feces due to alteration of forage diet . [Masters Thesis]. Auburn University; 2017. Available from: http://hdl.handle.net/10415/5693

Auburn University

28. Magee, Whitney. Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E .

Degree: 2017, Auburn University

URL: http://hdl.handle.net/10415/5704

► The objective of this research is to understand carcass and meat quality characteristics of pigs fed a combination of poultry fat, flaxseed oil, and supplemented… (more)

▼ The objective of this research is to understand carcass and meat quality characteristics of pigs fed a combination of poultry fat, flaxseed oil, and supplemented with vitamin E. It is hypothesized that certain combinations of these ingredients may increase intramuscular fat (IMF) percentage while simultaneously decreasing external fat deposition. Yorkshire pigs (n=96) weighing approximately 50 kg were allocated to pens based on weight and sex, over two trials. Pigs within each trial were born in the same farrowing groups and each pen was allotted two gilts or two barrows. Each pen was randomly assigned to one of 8 dietary treatments in a 4 x 2 factorial arrangement. Corn-soybean meal finisher diets were formulated to contain 0, 2, 4 or 6% lipids and either 11 or 220 IU Vitamin E/kg. For all diets with lipids, 1% flaxseed oil was included and the remaining lipids supplied by poultry fat (0, 1, 3, or 5%). Pigs were harvested (n=8 groups) when an average pen weight of 110 ± 3 kg was achieved. Following harvest, hot carcass weight (HCW) was recorded. At 24 hours post mortem carcasses were evaluated for last rib fat thickness (LRFT), tenth rib fat thickness (TRFT), loin eye area (LEA), muscle score (MS), percent fat free lean (%FFL), color values (L*, a*, b*), ultimate pH of the ham (pHH) and loin (pHL), and National Pork Producers Council (NPPC) color (NPPCCol) and marbling score (NPPCMar). TRFT, LEA, L*, a*, b*, pHH, NPPCCol, and NPPCMar were determined on the loin eye at the 10th/11th rib interface after chilling, prior to carcass fabrication. After carcasses were chilled for 24 h at 4±2°C, 2.54 cm pork chops were fabricated from the left side of the carcass and individually packaged in vacuum-sealed bags and frozen at -20±2°C for further analysis. Bellies were measured for thickness (BT), and both skin-side up (SSU) and skin-side down (SSD) firmness evaluation were made. Chops were analyzed for drip loss (DL), vacuum purge loss (VP), marinade uptake (MU), marinade cook loss (MCL), cook loss (CL), Warner-Bratzler Shear Force (WBS), and thiobarbituric acid reactive substances (TBARS). Proximate analysis was performed for the determination of collagen, fat, moisture, protein, and salt content of loin samples. Sensory evaluation by a trained panel was also performed. Statistical analysis was conducted using Proc GLM procedure in SAS (2002). Carcass was the experimental unit and days on feed (DOF) was used as a covariate. Main effects included trial, sex of pig, lipid level, and vitamin E concentration. All interactions were also included in the model. A 4-way interaction of trial x lipid x sex x vitamin E affected the measurements for SSU (P=0.0430) and CL (P=0.0379). Two 3-way interactions were found in this study. Lipid x vitamin E x sex were different for a* (P=0.0193), pHL (P=0.0007), SSU (P=0.03), belly thickness (P=0.0198), and VP (P=0.0167). A trial x lipid x vitamin E interaction for SSU (P=0.0238), DL (P=0.0471) and CL (P=0.0305) was present. Additionally, a trial x vitamin E interaction was present for TFRT… Advisors/Committee Members: Bratcher, Christy (advisor), Kriese-Anderson, Lisa (committee), Chiba, Lee (committee), Bergen, Werner (committee).

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Magee, W. (2017). Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5704

Chicago Manual of Style (16^th Edition):

Magee, Whitney. “Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E .” 2017. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5704.

MLA Handbook (7^th Edition):

Magee, Whitney. “Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E .” 2017. Web. 17 Feb 2020.

Vancouver:

Magee W. Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E . [Internet] [Masters thesis]. Auburn University; 2017. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5704.

Council of Science Editors:

Magee W. Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E . [Masters Thesis]. Auburn University; 2017. Available from: http://hdl.handle.net/10415/5704

Auburn University

29. Bennett, Katie. Overseeding Eastern gamagrass with cool-season grasses or grass-legume mixtures .

Degree: 2017, Auburn University

URL: http://hdl.handle.net/10415/5782

► The first year and a half of a 2-yr study was conducted at Black Belt Research and Extension Center in Marion Junction, AL to evaluate… (more)

▼ The first year and a half of a 2-yr study was conducted at Black Belt Research and Extension Center in Marion Junction, AL to evaluate the effects of overseeding early- vs. late-maturing cool-season forages on forage production, nutritive value, and persistence of Eastern gamagrass (Tripsacum dactyloides). The cool-season component compared four overseeding treatments: control, early-maturing ‘Florida 401’ rye (Secale cereale), mid-maturity ‘Wrens Abruzzi’ rye, and a mixture of ‘Wrens Abruzzi’ plus ‘AU Red Ace’ red clover (Trifolium pratense). During the warm season, plots were fertilized with either 67 kg nitrogen (N)/ha or 135 kg N/ha. Measurements of pre-graze forage mass, herbage harvested, and herbage accumulated were calculated from pre- and post-graze forage samples during both seasons. Hand-plucked samples were collected to determine nutritional value. Ground cover estimations and frequency ratings were taken during months in which Eastern gamagrass was breaking dormancy to determine effects of overseeding on persistence of Eastern gamagrass. The same measurements were taken as Eastern gamagrass began to go dormant at the end of the summer. Mob-stocking was used to simulate rotational grazing every 28 days. Data were analyzed using the MIXED procedure in SAS 9.4, and differences were declared significant when P < 0.05. Overseeding with ‘Wrens Abruzzi’ rye with or without red clover allowed for greater forage mass (P = 0.0355) and greater digestibility (P = 0.0012) compared with Florida 401 rye, but all treatments provided high-quality forage for grazing throughout the winter. Overall forage accumulation during the cool-season months was low (2,077 and 2,184 kg DM/ha in Yr 1 and Yr 2, respectively) during both years of the evaluation. Warm-season results in Yr 1 indicate that harvest date had an effect on pre-graze forage mass (P = 0.0002) and forage accumulation (P = 0.0008), but N fertilization rate did not affect forage production of Eastern gamagrass (P = 0.1610). Forage mass peaked in June, then decreased through the late summer. Increasing N fertilization rate resulted in greater digestibility (P = 0.0264) and CP concentrations (P =0.0006) of Eastern gamagrass. Estimates of Eastern gamagrass ground cover and frequency of occurrence increased to 81% and 99%, respectively, over the summer growing season, which suggests that overseeding during the winter months did not impact persistence of Eastern gamagrass. A second year of the warm-season portion of this study is currently being conducted. Advisors/Committee Members: Mullenix, Mary (advisor), Tucker, Jennifer (committee), Muntifering, Russell (committee), Angle, Jay (committee).

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bennett, K. (2017). Overseeding Eastern gamagrass with cool-season grasses or grass-legume mixtures . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5782

Chicago Manual of Style (16^th Edition):

Bennett, Katie. “Overseeding Eastern gamagrass with cool-season grasses or grass-legume mixtures .” 2017. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5782.

MLA Handbook (7^th Edition):

Bennett, Katie. “Overseeding Eastern gamagrass with cool-season grasses or grass-legume mixtures .” 2017. Web. 17 Feb 2020.

Vancouver:

Bennett K. Overseeding Eastern gamagrass with cool-season grasses or grass-legume mixtures . [Internet] [Masters thesis]. Auburn University; 2017. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5782.

Council of Science Editors:

Bennett K. Overseeding Eastern gamagrass with cool-season grasses or grass-legume mixtures . [Masters Thesis]. Auburn University; 2017. Available from: http://hdl.handle.net/10415/5782

Auburn University

30. Smith, Judson. Evaluating the Effects of Oat Fiber and Modified Corn Starch on the Characteristics of Smoked Sausage Utilizing Mechanically Separated Chicken .

Degree: 2017, Auburn University

URL: http://hdl.handle.net/10415/5873

► There is an increasing demand for affordable, all-natural products in the food service industry. This category includes clean label products, which are generally recognized as… (more)

▼ There is an increasing demand for affordable, all-natural products in the food service industry. This category includes clean label products, which are generally recognized as being minimally processed and having simple and understandable ingredient statements. This study is to evaluate blends of clean label functional ingredients for a low cost, highly extended smoked sausage. Texture profile analysis (TPA), consumer sensory panels, objective color analysis, microbial analysis, and pH analysis were used to evaluate quality attributes of sausages made with three blends of oat fiber (OF) and modified corn starch (CSm) over a 13-week storage. All sausages were made with mechanically separated chicken (MSC; 0.325% NaNO2, 1.75% salt) in a hog intestine casing. Treatments included a With Phosphate (0.43% sodium phosphate), Without Binders (no sodium phosphate, OF, or CSm), and three blends of OF and CSm at 3.5% green weight. Five sausages were selected randomly from each treatment and batch for sensory, color, and pH. One sausage was randomly selected for TPA and one for microbiological analysis. Following cooking and chilling, sausages were vacuum sealed and stored at 2°C in a corrugated box. Three sensory sausages were reheated in an oven to 79.4°C, cut into 2.54 cm segments, and cut in half lengthwise for sensory analysis while the remaining two were evaluated for color and pH. Treatments were given a unique, random 3-digit code. Consumer panelists (n=30) evaluated juiciness, cohesiveness, flavor, texture, and overall acceptability on a 9-point scale. TPA sausages were cut into three 2.54 cm segments, and evaluated using a TA-XT2icon Texture Analyser and 25 mm cylinder press. Data was analyzed using a repeated measures design with x, y + z as independent variables in the proc mixed procedure of SAS 9.4. Means were separated sing leas squares means with significance set at P<0.05. Sensory, texture, pH, and color evaluations were performed every 7 days contingent upon microbial and sensory analysis of spoilage. There was a treatment by week interaction for pH and sensory texture. An overall reduction in pH over extended storage time after week 2 was observed. The with phosphate treatment was similar to an experimental blend for 8 of 9 weeks exhibiting differences when evaluating the texture interaction. The treatments with OF:CSm were less juicy (P<0.05) than those without and were more cohesive sensory analysis. Adding OF at 3.15% and 1.75% had a negative effect on flavor acceptability and overall acceptability. TPA values for hardness were greater (P<0.05) in experimental blends than treatments with phosphate or without binders. Adding OF and CSm made sausages more hard, gummy and chewy (P<0.05). Advisors/Committee Members: Bratcher, Christy (advisor), Morey, Amit (committee), Wang, Luxin (committee), Kriese-Anderson, Lisa (committee).

Subjects/Keywords: Animal Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Smith, J. (2017). Evaluating the Effects of Oat Fiber and Modified Corn Starch on the Characteristics of Smoked Sausage Utilizing Mechanically Separated Chicken . (Masters Thesis). Auburn University. Retrieved from http://hdl.handle.net/10415/5873

Chicago Manual of Style (16^th Edition):

Smith, Judson. “Evaluating the Effects of Oat Fiber and Modified Corn Starch on the Characteristics of Smoked Sausage Utilizing Mechanically Separated Chicken .” 2017. Masters Thesis, Auburn University. Accessed February 17, 2020. http://hdl.handle.net/10415/5873.

MLA Handbook (7^th Edition):

Smith, Judson. “Evaluating the Effects of Oat Fiber and Modified Corn Starch on the Characteristics of Smoked Sausage Utilizing Mechanically Separated Chicken .” 2017. Web. 17 Feb 2020.

Vancouver:

Smith J. Evaluating the Effects of Oat Fiber and Modified Corn Starch on the Characteristics of Smoked Sausage Utilizing Mechanically Separated Chicken . [Internet] [Masters thesis]. Auburn University; 2017. [cited 2020 Feb 17]. Available from: http://hdl.handle.net/10415/5873.

Council of Science Editors:

Smith J. Evaluating the Effects of Oat Fiber and Modified Corn Starch on the Characteristics of Smoked Sausage Utilizing Mechanically Separated Chicken . [Masters Thesis]. Auburn University; 2017. Available from: http://hdl.handle.net/10415/5873

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