Synthesis of microbial protein in the forestomachs of sheep on a diet with various sources of nitrogen

Korshunov, V.N.; Kurilov, N.V.

Nauchnye Trudy, Vsesoyuznyi Nauchno issledovatel' skii Institut Fiziologii, Biokhimii i Pitaniya Sel' skokhozyaistvennykh Zhivotnykh 21: 72-79


Accession: 000996329

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A feed mixture including amide phosphate, compared to that with urea, gave a greater formation of micro-organisms in the rumen of sheep and a more effective utilization of N for microbial protein synthesis. Partial replacement of oilmeal with urea did not diminish synthesis in the rumen, or entry of protein and amino acids into the lower parts of the digestive tract. With complete replacement of protein by synthetic N substances and N-free diets, endogenous N played an important role in maintaining the medium necessary for growth and activity of microflora of the forestomach, but the rate of endogenous N depended to a large extent on the availability of exogenous N.