Misciattelli L,Kristensen V F,Vestergaad M.Milk production,nutrient utilization,and endocrine responses to increased postruminal lysine and methionine supply in dairy cows[J].Journal of Dairy Science.2003,86:275-286
[3]
Jimmy H,孟庆翔.奶牛营养需要[M].北京:中国农业大学出版社.2001
[4]
Lobley C G,Connell A,Buchan V.Administration of testosterone to wether lambs:effects on protein and energy metabolism and growth hormone status[J].Journal of Endocrinology.1987,115:439
[5]
Noftsger S,St-pierre N R.Supplementation of methionine and selection of highly digestible rumen undegradable protein to improve nitrogen efficiency for milk production[J].Journal of Dairy Science.2003,86:958-969
[6]
Overton T R,Emmert L S,Clark J H.Effects of source of carbohydrate and protein and rumen-protected methionineon performance of cows[J].Journal of Dairy Science.1998,81:221-228
[7]
Rulquin H,Delaby L.Effects of the energy balance of dairy cows on lactational responses to rumen-protected methionine[J].Journal of Dairy Science.1997,80:2513-2522
Pisulewski P M,Rulquin H,Peyraud J L.Lactational and systemic responses of dairy cows to postruminal infusions of increasing aamounts of methionine[J].Journal of Dairy Science.1996,79:1781-1791
[10]
Donkin S S,Varga G A,Sweeney T F.Rumen-protected methionine and lysine:effects on animal performance,milk protein yield and physiological measures[J].Journal of Dairy Science.1989,72:1484-1489
[11]
Soder K J,Holden L A.Lymphocyte proliferation response of lactating dairy cows fed varying concentrations of rumen-protected methionine[J].Journal of Dairy Science.1999,82:1935-1942
[12]
Blum J W,Brukckmaier R M,Jans F.Rumin-protected methionine fed to dairy cows:bioavailability and effects on plasma amino acid pattern and plasma metabolite and insulin concentrations[J].Journal of Dairy Science.1999,82:1991-1998
[13]
Nichols J R,Schingoethe D J,Maiga H A.Evaluation of corn distillers grains and ruminally protected lysine and methionine for lactating dairy cows[J].Journal of Dairy Science.1998,81:482-491
[14]
Xu S,Harrison J H,Chalupa W.The effect of ruminal bypass lysine and methionine on milk yield and composition of latating cows[J].Journal of Dairy Science.1998,81:1062-1077
[15]
Storm E.The nutritive value of rumen micro-organisms in ruminants.Ⅰ.Large scale isolation and chemical composition of rumen micro-organisms[J].British Journal of Nutrition.1983,50:463-470