1Argyle J L, Baldwin R L. Effects of amino acids and peptides on rumen microbial growth yields [J].Dairy Sci, 1989,7:2 017-2 027
2Armstead I P,Ling J R .Variations in the uptake and metabolism of peptides and amino aeids by mixed ruminal baeteria in vitro[J].Appl Environ Mierobio,1993,59:3 360-3 366
3Baekwell F.R.C. Quantification of eireulating peptides assessment of peptide uptake across the gastrointestinal tract of sheep [J]. Anim.Sci., 1997(75):3 315-3 322
4Boza J. Protein V enzymic protein hydrolysates.Nitrogen utiliz- ation in starved rats[J].Brit J. Nutr, 1995,73:65-71
5Broderick G A,Craig W M.Metabolism of peptides and amino acids during in vitro protein degradation by mixed rumen or ganisms[J] .J.Dairy Sci,1989,72:2 540-2 548
6Broderick G R,Wallace J,Mckain N.Uptake of small neutral peptides by mixed rumen microorganisms in vitro[J].J.Sci Food Agric,1988,42:109-118
7Chen Sniffen C J, Rssell J B. Concentration and destimated flow of peptides from the rumen of dairy cattle: Effects of protein quantity,protein solubility and feeding frequency [J]. J. Dairy sci,1987, 70:983-992
8Cotta M A,Hespell R B.Proteolytic activity of the ruminal bacterium butyrivibrio fibrisolvens [J].Appl Environ Microbi2ol,1986,52:51
9Daniel H. Boll, M.Wenal. U.Physiological importance and characterisitics of peptide transport in intestinal epth-elial cells. In: Souffrant, W.B.,H.Hagemeister. Ed.Ivth International symposium on Digestive physiology in pigs.Dammerstorf pub, 1994,1 : 1-7
10Dirienzo D B. Free and peptide amino acid fluxes across the mesenteric and nonmesenteric viscera of sheep and calves [D].Viginia Polytechnic Inst And State Univ,Blaeksbury,1990
6Kennedy P M, Milligan L P. The degradation and utilization of endogenous urea the gastrointestinal tract of ruminants: A review[J]. Can Anim Sci, 1980, 60: 205-221.
7Huntington G B. Uptake and transport of nonprotein nitrogen by the ruminant gut[J]. Fed Proc, 1986, 45: 2272-2276.
8Cotta M A, Hespell R B. Proteolytic activity of the ruminal bacterium butyrivibrio fibrisolvens[J]. Appl Environ Microbiol, 1986, 52: 51.
9Chen G, Strobel H J, Russell J B, et al. Effect of hydrophobicity on utilization of peptides by ruminal bacteria in vitro[J]. Appl Microbiol, 1987, 53: 2021.
10Broderick G A, Craig W M. Metabolism of peptides and amino acids during in vitro protein degradation by mixed rumen organisms[J]. J Dairy Sci, 1989, 72:2540-2548.
