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Some effects of spring grass on rumen digestion and the metabolism of the dairy cow



Some effects of spring grass on rumen digestion and the metabolism of the dairy cow



Proceedings of the Nutrition Society 16(1): 25-30



The ammonia content of rumen liquor in cows grazing spring grass is much higher than in cows on winter rations, and it is associated with a considerable rise in serum urea and blood ammonia. The introduction of starch through a ruminal fistula reduced all of these and also the amount of nitrogen excreted in the urine. The authors postulate that the high rumen ammonia content affects the utilization of herbage magnesium.

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Accession: 014190216

Download citation: RISBibTeXText

PMID: 13420126

DOI: 10.1079/pns19570007



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