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You searched for +publisher:"University of Tennessee – Knoxville" +contributor:("Michael O. Smith, Henry G. Kattesh"). Showing records 1 – 3 of 3 total matches.

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University of Tennessee – Knoxville

1. Adeniji, Oluwatoyin Bukunmi. Effects of environmental enrichment strategies on behavior and production performance of broiler breeder chickens reared at elevated temperatures.

Degree: MS, Animal Science, 2012, University of Tennessee – Knoxville

Enriched housing systems are embraced as better alternatives to bare housing systems for table egg laying hens. However, attention is presently turning to the meat type (broiler breeder) laying hens. Hence, this experiment investigated the effects of perch structures and sharp sand on behavior, physiology, and production performance of broiler breeder chickens reared under elevated temperatures. Two hundred and eighty eight broiler breeder females and 48 males (Cobb 500) at 21-weeks-old were assigned to their respective treatments in two different rooms. One room was maintained at 23°C to mimic a thermoneutral environment while the second room cycled between 23°C and 30°C to mimic a heat stressed environment. Each room had all four treatments and the treatments were replicated three times with 12 females and two males per replicate. The four treatments were sand (S), perch (P), a combination of sand and perch (SP), and control (C). Production performances (hen-day egg production, egg weights, floor eggs, fertility, and hatchability), Physiology (cortcosterone levels, heterophil/lymphocyte ratio), and behavior parameters were determined. The production data were analyzed using a completely randomized design (CRD) with repeated measures while the physiology and behavior parameters were analyzed using CRD split plot with sampling and a factorial in the whole plot. The results indicate that S and SP increased (P=0.0138) egg production. Enrichment S, P, and SP reduced the occurrences of floor eggs. HS environment increased (P=0.0435) bird’s corticosterone levels in broiler breeder males and tended to increase (P=0.07) female corticosterone levels. There was a trend (P=0.0792) for increased preening in the HS room. The birds in treatment P tended to preen more (P=0.0655) than those in S. The frequency of attempted mating was least (P=0.025) in treatment P. In the TN environment, broiler breeders reared in treatments S, SP, and C performed more (P=0.0029) completed mating than their counterparts in the HS room. The duration of sand use was higher (P Advisors/Committee Members: Michael O. Smith, Henry G. Kattesh and Brynn Voy.

Subjects/Keywords: Broiler breeder; Environmental enrichment; Heat stress; production performance; behavior; physiology; Poultry or Avian Science

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APA (6th Edition):

Adeniji, O. B. (2012). Effects of environmental enrichment strategies on behavior and production performance of broiler breeder chickens reared at elevated temperatures. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/1126

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

Chicago Manual of Style (16th Edition):

Adeniji, Oluwatoyin Bukunmi. “Effects of environmental enrichment strategies on behavior and production performance of broiler breeder chickens reared at elevated temperatures.” 2012. Thesis, University of Tennessee – Knoxville. Accessed February 27, 2020. https://trace.tennessee.edu/utk_gradthes/1126.

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

MLA Handbook (7th Edition):

Adeniji, Oluwatoyin Bukunmi. “Effects of environmental enrichment strategies on behavior and production performance of broiler breeder chickens reared at elevated temperatures.” 2012. Web. 27 Feb 2020.

Vancouver:

Adeniji OB. Effects of environmental enrichment strategies on behavior and production performance of broiler breeder chickens reared at elevated temperatures. [Internet] [Thesis]. University of Tennessee – Knoxville; 2012. [cited 2020 Feb 27]. Available from: https://trace.tennessee.edu/utk_gradthes/1126.

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

Council of Science Editors:

Adeniji OB. Effects of environmental enrichment strategies on behavior and production performance of broiler breeder chickens reared at elevated temperatures. [Thesis]. University of Tennessee – Knoxville; 2012. Available from: https://trace.tennessee.edu/utk_gradthes/1126

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


University of Tennessee – Knoxville

2. Chung, Karianne Mei-Ying. Effect of double interspiking on fertility, behavior, and blood parameters in broiler breeder males reared under heat stress conditions.

Degree: MS, Animal Science, 2010, University of Tennessee – Knoxville

Broiler breeders experience a natural decline in fertility levels as a flock ages. A male management practice such as double interspiking could be applied to counteract this decline. Our objective was to investigate the effects of double interspiking on flock fertility, testosterone concentrations, stress responses, and behavioral responses of broiler breeders in heat stressed environments. Two hundred and eighty-eight broiler breeder pullets and thirty-six broiler breeder roosters (Ross 708) were assigned to three groups at 21 weeks of age (WOA). All three groups were housed in slatted floor pens in which room temperature cycled from 23.8 to 30 C to mimic heat stressed environments. Double interspiking was carried out between two pens at 42 and 52 WOA. Beginning at 32 WOA, eggs were set every two weeks, candled at day 12, and percent fertility calculated. Concentrations of the hormones testosterone and corticosterone (CS) were measured by radioimmunoassays at specific time points in the experiment. Lymphocytes and heterophils were counted in order to calculate heterophil:lymphocyte (H:L) ratios. Behavior was monitored with Panasonic video cameras which recorded video footage using the Noldus MPEG Recorder from 1900 hr to 2100 hr at specific time points. Recordings were analyzed, and frequency of specific behavioral responses of individual (preening, feather ruffling, wing flapping), male-to-male (fighting, pecking, retreating), and male-to-female (attempted and completed mating) behaviors were assessed. The introduction of unfamiliar roosters resulted in a fertility increase (P<0.01) between control and spiked birds after the first interspike and a sustainment of fertility levels after the second interspike. Testosterone concentrations declined (P<0.0001) from 1.95ng/mL to 0.11ng/mL as the birds aged. Corticosterone concentrations differed among bird groups and was elevated (P=.0333) for both groups that were interspiked. H:L ratios were also different among bird groups with all birds housed in the interspiked rooms showing higher ratios. Double interspiking increased the occurrence of male-to-male interactions, but there were no significant differences in male-to-female or individual behaviors. Regardless of treatment, there was a decrease in male-to-female behaviors as the birds aged. Double interspiking does show promise as a tool to increase fertility levels in a broiler breeder flock. Advisors/Committee Members: Michael O. Smith, Henry G. Kattesh, Kelly R. Robbins.

Subjects/Keywords: broiler breeder; fertility; endocrine; behavior; double interspiking; heat stress; Poultry or Avian Science

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

APA (6th Edition):

Chung, K. M. (2010). Effect of double interspiking on fertility, behavior, and blood parameters in broiler breeder males reared under heat stress conditions. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/694

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

Chicago Manual of Style (16th Edition):

Chung, Karianne Mei-Ying. “Effect of double interspiking on fertility, behavior, and blood parameters in broiler breeder males reared under heat stress conditions.” 2010. Thesis, University of Tennessee – Knoxville. Accessed February 27, 2020. https://trace.tennessee.edu/utk_gradthes/694.

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

MLA Handbook (7th Edition):

Chung, Karianne Mei-Ying. “Effect of double interspiking on fertility, behavior, and blood parameters in broiler breeder males reared under heat stress conditions.” 2010. Web. 27 Feb 2020.

Vancouver:

Chung KM. Effect of double interspiking on fertility, behavior, and blood parameters in broiler breeder males reared under heat stress conditions. [Internet] [Thesis]. University of Tennessee – Knoxville; 2010. [cited 2020 Feb 27]. Available from: https://trace.tennessee.edu/utk_gradthes/694.

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

Council of Science Editors:

Chung KM. Effect of double interspiking on fertility, behavior, and blood parameters in broiler breeder males reared under heat stress conditions. [Thesis]. University of Tennessee – Knoxville; 2010. Available from: https://trace.tennessee.edu/utk_gradthes/694

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


University of Tennessee – Knoxville

3. Ingle, Heather DeAnna. Effects of bedding with recycled sand on lying behaviors, udder hygiene, and preferences of lactating Holstein dairy cows.

Degree: MS, Animal Science, 2015, University of Tennessee – Knoxville

Effects of bedding with recycled sand and season on lying behaviors, stress, hygiene, and preferences of late-lactation Holstein cows were studied. Cows (n=64) were divided into 4 groups (n=8 per group) per season. In summer (Aug-Sept), cows were balanced by days in milk (268.1±11.9 d) and parity (2.0±0.2). In winter (Jan-Feb), mean DIM was 265.5±34.1 d. Cows were assigned to one of two treatments (trt) using a crossover design with each trt lasting 7-d (no-choice phase): bedding with recycled sand (RS; n=32) or control (CO; clean sand; n=32). Stocking density was maintained at 100%. Choice phase allowed a cow to have each treatment. Accelerometers recorded daily lying time/d, number of lying bouts/d, lying bout duration (min/bout), and total steps/d. Blood, teat swabs, milk, sand samples, and udder hygiene scores were collected on d 0, 3, and 7 of each experimental week. Blood was used to assess levels of cortisol. Samples were cultured for Streptococci, Staphylococci, and gram-negative bacteria. Video data was used to assess bedding preferences. All data were analyzed using the MIXED and GLIMMIX procedures of SAS 9.3. Lying time was not affected by treatment, but there was an increase in steps during winter. Cortisol was higher for control cows in summer and recycled sand in winter. Bacterial counts were higher for cows on recycled sand. Hygiene scores were higher for cows on recycled sand during the summer. There was not a preference for control or recycled sand. Advisors/Committee Members: Peter D. Krawczel, Michael O. Smith, Henry G. Kattesh.

Subjects/Keywords: dairy cows; lying behavior; hygiene; preferences; recycled sand; bedding; Dairy Science

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

APA (6th Edition):

Ingle, H. D. (2015). Effects of bedding with recycled sand on lying behaviors, udder hygiene, and preferences of lactating Holstein dairy cows. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/3587

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

Chicago Manual of Style (16th Edition):

Ingle, Heather DeAnna. “Effects of bedding with recycled sand on lying behaviors, udder hygiene, and preferences of lactating Holstein dairy cows.” 2015. Thesis, University of Tennessee – Knoxville. Accessed February 27, 2020. https://trace.tennessee.edu/utk_gradthes/3587.

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

MLA Handbook (7th Edition):

Ingle, Heather DeAnna. “Effects of bedding with recycled sand on lying behaviors, udder hygiene, and preferences of lactating Holstein dairy cows.” 2015. Web. 27 Feb 2020.

Vancouver:

Ingle HD. Effects of bedding with recycled sand on lying behaviors, udder hygiene, and preferences of lactating Holstein dairy cows. [Internet] [Thesis]. University of Tennessee – Knoxville; 2015. [cited 2020 Feb 27]. Available from: https://trace.tennessee.edu/utk_gradthes/3587.

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

Council of Science Editors:

Ingle HD. Effects of bedding with recycled sand on lying behaviors, udder hygiene, and preferences of lactating Holstein dairy cows. [Thesis]. University of Tennessee – Knoxville; 2015. Available from: https://trace.tennessee.edu/utk_gradthes/3587

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

.