MERCHEN N R,TITGEMEYER E C.Manipulation of amino acid supply to the growing ruminant[J].Journal of Animal Science,1992,70(10):3238-3247.
[2]
CHALUPA W.Degradation of amino acids by the mixed rumen microbial population[J].Journal of Animal Science,1976,43(4):829-834.
[3]
冯仰廉.反刍动物营养学[M].北京:科学出版社,2004:172-173.
[4]
MENKEA K H,RAABA L,SALEWSKI A,et al.The estimation of the digestibility and metabolizable energy content of ruminant feedingstuffs from the gas production when they are incubated with rumen liquor in vitro[J].The Journal of Agricultural Science (Cambridge),1979,93:217-222.
[5]
王继贵.临床生化检验[M].2版.长沙:湖南科学技术出版社:1996.
[6]
REDDY P S,REDDY G V N,REDDY M R.Utilization of sunflower straw and subabul-meal in complete diets for crossbred bulls[J].India Journal of Animal Sciences 1987,59(9):980-985.
[7]
LENG R A,NOLAN J V.Nitrogen metabolism in the rumen[J].Journal of Dairy Science,1984,67(5):1072-1089.
[8]
STERN M D,VARGA G A,CLARK J H,et al.Evaluation of chemical and physical properties of feeds that affect protein metabolism in the rumen[J].Journal of Dairy Science,1994,77(9):2762-2786.
[9]
GUINARD J,RULQUIN H.Effects of graded amounts of duodenal infusions of methionine on the mammary uptake of major milk precursors in dairy cows[J].Journal of Dairy Science,1995,78(10):2196-2207.
MISCIATTELLI L,KRISTENSEN V F,VESTERGAARD M,et al.Milk production,nutrient utilization,and endocrine responses to increased postruminal lysine and methionine supply in dairy cows[J].Journal of Dairy Science,2003,86(1):275-286.
PISULEWSK P M,RULQUIN H,PEYRAUD J L,et al.Lactational and systemic responses of dairy cows to postruminal infusions of increasing amounts of methionine[J].Journal of Dairy Science,1996,79(10):1781-1791.
[15]
HUNTINGTON G B.Uptake and transport of nonprotein nitrogen by the ruminant gut[J].Federation Proceedings,1986,45(8):2272-2276.