期刊文献+

蛋白质摄入量对牛奶尿素氮影响的评价 被引量:12

原文传递
导出
摘要 本文分析了奶牛瘤胃降解蛋白(RDP)、瘤胃非降解蛋白(RUP)日摄入量和泌乳净能(NEL)日摄入量对牛奶尿素氮(Milk Urea Nitrogen,MUN)值直接影响的程度大小,结果是RUP摄入量的影响程度最大(P<0.001),RDP摄入量次之(P=0.001),NEL摄入量的影响最小(P=0.414)。NEL摄入量对MUN的影响主要是通过RDP和RUP的摄入量来对MUN产生间接影响。用RDP摄入量(X1)和RUP摄入量(X2)估测MUN(Y)的多元回归方程:Y=0.50×X1+0.65×X2-14.82(R2=0.92,P<0.001)
出处 《当代畜牧》 2004年第3期23-25,共3页 Contemporary Animal Husbandry
  • 相关文献

参考文献15

  • 1Arunvips P.,I.R. Dohoo, J.A. Vanleeuwen, and G.P. Keefe.2003. The effect of non-nutritional factors on milk urea nitrogen levels in dairy cows in Prince Edward Island Canada Preterinary Veterinary Medicine. 59:83-93.
  • 2BakerKinetic analysisin dairy cows. JD. Ferguson, and C. F. Ramberg. 1992.of urea transport from plasma to milk Dairy Sei. 75(Suppl. 1):181(Abstr.).
  • 3Broderick Glen A. And Murray K.Clayton.1997.A Statistical Evaluation of Animal and nutritional Factors Influencing Concentrations of milk urea Nitrogen.J Dairy Sci 80:2964-2971.
  • 4Cannas, A. A. Pes, 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.
  • 5Hof, G.,S.Tammingo, and P. J. Lenaers. 1999. Efficiency of protein utilization in dairy cows.Livest. Prod ScL 38:169.
  • 6Jonker, J.S., R.A. Kohn, and R.A. Erdman. 1999. Milk urea nitrogen target concentration for dairy cows fed according to National Research Council recmmendation.J.Dairy Sci.86:1621-1273.
  • 7Lewis, D. 1957. Blood-urea concentration in relation to protein utilization in the ruminant. J. Agric. Sci. (Camb.)48:438.
  • 8National Research Council. 2001. Nutrient Requirement of Dairy Cattle. 7th rev. ed Natl. Acad Sci., Washington, DC.
  • 9Oltner, R., and H.Wiktorsson.1983.Urea concentrations in milk and blood as influenced by feeding varying amounts of protein and energy to dairy cows. Livest.10:457-467.
  • 10Payne,J.M.,Dew,S.M., Manston,R.,Faulks, M.,1970.The use of a metabolic profile test in dairy herds. Vet.Rec. 87:150-158.

同被引文献81

引证文献12

二级引证文献40

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部