Effect of protein degradability on milk production of dairy ewes

Journal of Dairy Science

Volumn 92, Issue 9, 2009, Pages 4507-4513

  Mikolayunas Sandrock, C ^a   Armentano, L E ^a   Thomas, D L ^a   Berger, Y M ^b  

^a UNIVERSITY OF WISCONSIN MADISON   (United States)

^b Hancock Agricultural Research Station   (United States)

Author keywords

Dairy sheep; Protein degradability

Indexed keywords

AVENA; BOVIDAE; GLYCINE MAX; MEDICAGO SATIVA; OVIS ARIES; PHLEUM PRATENSE; ZEA MAYS;

NITROGEN;

ANIMAL; ANIMAL DISEASE; ANIMAL FOOD; ARTICLE; BODY CONSTITUTION; BODY WEIGHT; CHEMISTRY; DAIRYING; DIET; EATING; FEMALE; LACTATION; METABOLISM; MILK; PHYSIOLOGY; PROTEIN INTAKE; SECRETION; SHEEP;

ANIMAL NUTRITIONAL PHYSIOLOGICAL PHENOMENA; ANIMALS; BODY CONSTITUTION; BODY WEIGHT; DAIRYING; DIET; DIETARY PROTEINS; EATING; FEMALE; LACTATION; MILK; NITROGEN; SHEEP;

EID: 70349278938     PISSN: 00220302     EISSN: 15253198     Source Type: Journal    
DOI: 10.3168/jds.2008-1983     Document Type: Article

References (27)

1. Agricultural Research Council. 1980. The Nutrient Requirements of Ruminant Livestock. Commonwealth Agricultural Bureaux, Slough, UK.
2. AOAC. 1997. Official Methods of Analysis. 16th ed. Assoc. Off. Anal. Chem., Gaithersburg, MD.
3. Berardinelli, J. G., J. Weng, P. J. Burfening, and R. Adair. 2001. Effect of excess degradable intake protein on early embryonic development, ovarian steroids, and blood urea nitrogen on days 2, 3, 4, and 5 of the estrous cycle in mature ewes. J. Anim. Sci. 79:193-199.
4. Boundy, T. 1982. Body condition scoring of sheep. Progr. Sheep Breeder:22-24.
5. Broderick, G. A., D. R. Mertens, and R. Simons. 2002. Efficacy of carbohydrate sources for milk production by cows fed diets based on alfalfa silage. J. Dairy Sci. 85:1767-1776.
6. Cannas, A. 2002. Feeding of lactating ewes. Pages 123-166 in Dairy Sheep Feeding and Nutrition. G. Pulina, ed. Avenue Media, Bologna, Italy.
7. Cannas, A., A. Pes, R. Mancuso, B. Vodret, and A. Nudda. 1998. Effect of dietary energy and protein concentration on the concentration of milk urea nitrogen in dairy ewes. J. Dairy Sci. 81:499-508.
8. Castillo, A. R., E. Kabreab, D. E. Beever, J. H. Barbi, J. D. Sutton, H. C. Kirby, and J. France. 2001. The effect of protein supplementation on nitrogen utilization in lactating dairy cows fed grass silage diets. J. Anim. Sci. 79:247-253.
9. Clark, J. H., T. H. Klusmeyer, and M. R. Cameron. 1992. Microbial protein synthesis and flows of nitrogen fractions to the duodenum of dairy cows. J. Dairy Sci. 75:2304-2323.
10. Cunningham, K. D., M. J. Cecava, T. R. Johnson, and P. A. Ludden. 1996. Influence of source and amount of dietary protein on milk yield by cows in early lactation. J. Dairy Sci. 79:620-630.
11. Fahey, J., M. P. Boland, and D. O'Callaghan. 2001. The effects of dietary urea on embryo development in superovulated donor ewes and on early embryo survival and development in recipient ewes. Anim. Sci. 72:395-400.
12. Goering, H. K., and P. J. Van Soest. 1970. Forage Fiber Analyses (Apparatus, Reagents, Procedures, and Some Applications). Agric. Handbook No. 379. ARS-USDA, Washington, DC.
13. Jonker, J. S., R. A. Kohn, and R. A. Erdman. 1998. Using milk urea nitrogen to predict nitrogen excretion and utilization efficiency in lactating dairy cows. J. Dairy Sci. 81:2681-2692.
14. Jonker, J. S., R. A. Kohn, and J. High. 2002. Use of milk urea nitrogen to improve dairy cow diets. J. Dairy Sci. 85:939-946.
15. Kohn, R. A., M. M. Dinneen, and E. Russek-Cohen. 2005. Using blood urea nitrogen to predict nitrogen excretion and efficiency of nitrogen utilization in cattle, sheep, goats, horses, pigs and rats. J. Anim. Sci. 83:879-889.
16. Licitra, G., T. M. Hernandez, and P. J. Van Soest. 1996. Standardization of procedures for nitrogen fractionation of ruminant feeds. Anim. Feed Sci. Technol. 57:347-358.
17. NRC. 2007. Nutrient Requirements of Small Ruminants. Natl. Acad. Press, Washington, DC.
18. Reynal, S. M., and G. A. Broderick. 2005. Effect of dietary level of rumen-degraded protein on production and nitrogen metabolism in lactating dairy cows. J. Dairy Sci. 88:4045-4064.
19. Robinson, J. J., I. McHattie, J. F. Calderon Cortes, and J. L. Thompson. 1979. Further studies on the response of lactating ewes to dietary protein. Anim. Prod. 29:257-269.
20. Salisbury, M. W., C. R. Krehbiel, T. T. Ross, C. L. Schultz, and L. L. Melton. 2004. Effects of supplemental protein type on intake, nitrogen balance, and site, and extent of digestion in whiteface wethers consuming low-quality grass hay. J. Anim. Sci. 82:3567-3576.
21. Santos, F. A. P., J. E. P. Santos, C. B. Theurer, and J. T. Huber. 1998. Effects of rumen- undegradable protein on dairy cow performance: A 12-year literature review. J. Dairy Sci. 81:3182-3213.
22. Sevi, A., A. Muscio, L. Cordola, and D. Dantone. 1998. Milk yield of Comisana ewes fed rumen protected methionine and lysine at two levels of dietary protein content. Ital. J. Food Sci. 2:137-146.
23. Small Ruminant Nutrition System. 2008. Small Ruminant Nutrition System, Version 1.8.4. http://nutritionmodels.tamu.edu/srns.htm Accessed Aug. 28, 2008.
24. Swanson, K. C., J. S. Caton, D. A. Redner, V. I. Burke, and L. P. Reynolds. 2000. Influence of undegraded intake protein on intake, digestion, serum hormones and metabolites, and nitrogen balance in sheep. Small Rumin. Res. 35:225-233.
25. Tamminga, S. 1992. Nutrition management of dairy cows as a contribution to pollution control. J. Dairy Sci. 75:345-357.
26. Van Soest, P. J., J. B. Robertson, and B. A. Lewis. 1991. Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J. Dairy Sci. 74:3583-3597.
27. Wattiaux, M. A., and K. L. Karg. 2004. Protein level for alfalfa and corn silage-based diets: I. Lactational response and milk urea nitrogen. J. Dairy Sci. 87:3480-3491.