9Cotta M A,Russell J R.Effect of peptides and aminoacids on efficiency of rumen bacterial protein synthe-sis in continuous culture[J].Dairy Sci,1982,65:226-234.
10Bandle S,Gupta B N.Rumen fementation bacterialand total volatile fatty acid productionrates in cattlefed on urea-molasses minerable licks supplement[J].Anim Feed Sci Tech,1997,65:275-286.