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You searched for subject:(Milk production chain). Showing records 1 – 2 of 2 total matches.

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1. Valeeva, N.I. Cost-effectiveness of improving food safety in the dairy production chain.

Degree: 2005, Ponsen & Looijen

The main objective of this thesis is to develop a methodology for quantifying and optimizing strategies for improving food safety in the dairy chain for fluid pasteurized milk.</span><span lang=EN-GB style='font-size:12.0pt;line-height:150%;font-family:"Times New Roman"; mso-ansi-language:EN-US;font-weight:normal'></span><span lang=EN-US style='font-size:12.0pt;line-height:150%;font-family:"Times New Roman"; mso-ansi-language:EN-US;font-weight:normal'>A linear programming model is developed to identify cost-effective (least-cost) measures that comprise strategies for attaining different levels of improving food safety. The model shows the tradeoffs between increasing levels of improving food safety and the associated extra costs. T</span><span lang=EN-GB style='font-size:12.0pt; line-height:150%;font-family:"Times New Roman";font-weight:normal'>he model also provides insight into the effect of farm size on the extra costs incurred by the farm and the chain as a whole. To analyze this effect, the chain model was run for two situations, i.e. for a dairy farm size of 50 milking cows and one of 250 milking cows.<o:p></o:p></span>The main inputs for the model are the costs of the control measures and the effectiveness of these measures in improving food safety. Extra costs per ton of milk of implementing and maintaining the measures were calculated using a partial budgeting method. Relative effectiveness of control measures was assessed by experts using adaptive conjoint analysis. The analysis also reveals that many of the most important action points for improving food safety in the chain relate to the farm level.</span><span lang=EN-US style='font-size:12.0pt;line-height:150%;font-family:"Times New Roman"; mso-ansi-language:EN-US;font-weight:normal'>Therefore, an extended analysis on the importance of farm-level action points is performed to yield insight into farmers' awareness of the action points by exploring differences and similarities between farmers' perceptions of these action points and those of experts. Besides adaptive conjoint analysis, a two-stage cluster analysis and statistical tests are used. Results</span><span lang=EN-GB style='font-size: 12.0pt;line-height:150%;font-family:"Times New Roman";font-weight:normal'>suggest that farmers have a good knowledge of most important farm-level action points.<o:p></o:p></span>Irrespective of farm size, results demonstrate an upward sloping relationship between the food safety levels and the corresponding extra costs both for the farm</span><span lang=EN-GB style='font-size:12.0pt;line-height:150%;font-family:"Times New Roman"; font-weight:normal'>level and the chain as a whole. Relatively low levels of improving food safety in the chain (up to 50% of the maximum) can be achieved at relatively low cost for the farm (up to €0.10 and €0.34 per ton of milk in the 50- and 250-cow situation respectively) as well as for the chain (up to €1.42 and €1.09 per ton of milk in the 50- and 250-cow situation respectively). However, attaining higher food safety levels (up to the… Advisors/Committee Members: Wageningen University, Ruud Huirne, Alfons Oude Lansink, Miranda Meuwissen.

Subjects/Keywords: voedselveiligheid; consumptiemelk; melkveebedrijven; cost effective analysis; optimalisatie; ketenmanagement; agro-industriële ketens; Kwaliteit van levensmiddelen, voedselveiligheid; Beheer van productieketens; food safety; liquid milk; dairy farms; cost effectiveness analysis; optimization; supply chain management; agro-industrial chains; Food Quality and Safety; Production Chain Management

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

APA (6th Edition):

Valeeva, N. I. (2005). Cost-effectiveness of improving food safety in the dairy production chain. (Doctoral Dissertation). Ponsen & Looijen. Retrieved from http://library.wur.nl/WebQuery/wurpubs/341126 ; urn:nbn:nl:ui:32-341126 ; urn:nbn:nl:ui:32-341126 ; http://library.wur.nl/WebQuery/wurpubs/341126

Chicago Manual of Style (16th Edition):

Valeeva, N I. “Cost-effectiveness of improving food safety in the dairy production chain.” 2005. Doctoral Dissertation, Ponsen & Looijen. Accessed November 27, 2020. http://library.wur.nl/WebQuery/wurpubs/341126 ; urn:nbn:nl:ui:32-341126 ; urn:nbn:nl:ui:32-341126 ; http://library.wur.nl/WebQuery/wurpubs/341126.

MLA Handbook (7th Edition):

Valeeva, N I. “Cost-effectiveness of improving food safety in the dairy production chain.” 2005. Web. 27 Nov 2020.

Vancouver:

Valeeva NI. Cost-effectiveness of improving food safety in the dairy production chain. [Internet] [Doctoral dissertation]. Ponsen & Looijen; 2005. [cited 2020 Nov 27]. Available from: http://library.wur.nl/WebQuery/wurpubs/341126 ; urn:nbn:nl:ui:32-341126 ; urn:nbn:nl:ui:32-341126 ; http://library.wur.nl/WebQuery/wurpubs/341126.

Council of Science Editors:

Valeeva NI. Cost-effectiveness of improving food safety in the dairy production chain. [Doctoral Dissertation]. Ponsen & Looijen; 2005. Available from: http://library.wur.nl/WebQuery/wurpubs/341126 ; urn:nbn:nl:ui:32-341126 ; urn:nbn:nl:ui:32-341126 ; http://library.wur.nl/WebQuery/wurpubs/341126

2. Chibisa, Gwinyai. Optimizing the efficiency of nutrient utilization in dairy cows.

Degree: 2013, University of Saskatchewan

A series of experiments were conducted to determine nutritional strategies to improve the efficiency of N utilization in dairy cows when feeding co-products including wheat-based (W-DDGS) and corn-wheat blend distillers grains with solubles (B-DDGS), and dried whey permeate (DWP). In Experiment 1, the objective was to determine the effects of replacing canola meal (CM) as the major protein source with W-DDGS on ruminal fermentation, microbial protein production, omasal nutrient flow, and animal performance. Cows were fed either a standard barley silage-based total mixed ration containing CM as the major protein supplement (0% W-DDGS, control) or diets formulated to contain 10, 15 and 20% W-DDGS (dry matter [DM] basis), with W-DDGS replacing primarily CM. Diets were isonitrogenous (18.9% crude protein [CP]). Inclusion of W-DDGS to the diet did not negatively affect ruminal fermentation, microbial protein production, and omasal nutrient flow. However, there was a 0.7- to 2.4-kg increase in DM intake, and a 1.2- to 1.8-kg increase in milk yield after the addition of W-DDGS in place of CM. In Experiment 2, the objective was to delineate the effects of including either W-DDGS or B-DDGS dried distillers grains with solubles as the major protein source in low or high CP diets fed to dairy cows on ruminal function, microbial protein synthesis, omasal nutrient flows, urea-N recycling, and milk production. The treatment factors were type of distillers co-product (W-DDGS vs. B-DDGS) and dietary CP content (15.2 vs. 17.3%; DM basis). The B-DDGS was produced from a mixture of 15% wheat and 85% corn grain. All diets were formulated to contain 10% W-DDGS or B-DDGS on a DM basis. Feeding up to 10% of dietary DM as B-DDGS or W-DDGS as the major source of protein did not have negative effects on metabolizable protein (MP) supply and milk production in dairy cows. However, reducing dietary CP content from 17.3 to 15.2% decreased milk production. This response was attributed to an insufficient supply of ruminally degradable protein (RDP) that suppressed microbial nonammonia N (NAN) synthesis in the rumen, thus decreasing intestinal MP supply. In Experiment 3, the objective was to determine the effects of replacing barley or corn starch with lactose (as DWP) in diets containing 10% W-DDGS on ruminal function, omasal nutrient flow, and lactation performance. The treatment factors were source of starch (barley vs. corn) and dietary inclusion level of DWP (0 vs. 6%; DM basis) as a partial replacement for starch. Diets were isonitrogenous (18% CP) and contained 3 or 8% total sugar. The starch content of the low sugar diet was 24% compared to 20% for the high sugar diet. Dry matter intake, and milk and milk component yields did not differ with diet. However, partially replacing dietary corn or barley starch with sugar up-regulated ruminal acetate and propionate absorption, and reduced ruminal NH3-N concentration, but had no effect on ruminal pH, microbial protein synthesis, omasal nutrient flow and production in dairy cows. In summary, data… Advisors/Committee Members: Mutsvangwa, Timothy, Buchanan, Fiona, Hamilton, Don, McKinnon, John, Christensen, Dave.

Subjects/Keywords: dairy cow; dried distillers grains with solubles; lactose; microbial protein; milk production; nitrogen excretion; nutrient utilization efficiency; omasal nutrient flow; starch; short-chain fatty acid absorption; nitrogen metabolism; urea-N recycling

…OMASAL NUTRIENT FLOW, AND MILK PRODUCTION… …39 3A.4.2 Feed Intake and Milk Production… …accountable for environmental pollution associated with milk production, as governments implement… …limiting AA for milk production (O’Connor et al., 1993; NRC, 2001). Additionally, 80… …2.3 Reducing the Environmental Cost of Dairy Production… 

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

APA (6th Edition):

Chibisa, G. (2013). Optimizing the efficiency of nutrient utilization in dairy cows. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2013-03-973

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):

Chibisa, Gwinyai. “Optimizing the efficiency of nutrient utilization in dairy cows.” 2013. Thesis, University of Saskatchewan. Accessed November 27, 2020. http://hdl.handle.net/10388/ETD-2013-03-973.

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

MLA Handbook (7th Edition):

Chibisa, Gwinyai. “Optimizing the efficiency of nutrient utilization in dairy cows.” 2013. Web. 27 Nov 2020.

Vancouver:

Chibisa G. Optimizing the efficiency of nutrient utilization in dairy cows. [Internet] [Thesis]. University of Saskatchewan; 2013. [cited 2020 Nov 27]. Available from: http://hdl.handle.net/10388/ETD-2013-03-973.

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

Council of Science Editors:

Chibisa G. Optimizing the efficiency of nutrient utilization in dairy cows. [Thesis]. University of Saskatchewan; 2013. Available from: http://hdl.handle.net/10388/ETD-2013-03-973

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

.