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Effect of time of sampling and of feed on the composition of rumen fluid

Effect of time of sampling and of feed on the composition of rumen fluid

Revue de l' Agriculture 30(4): 979-989

A cow with a rumen cannula was given 4 rations and composition of rumen liquor was measured every day; samples were taken at 0900 h before feeding, then hourly from 1030 to 1530 h. The rations differed widely in gross composition. pH of rumen liquor decreased 1 to 2 h after feeding, particularly with a ration of 2 kg hay, 2.3 kg maize starch, 0.7 kg molasses and 50 g urea, whereas 2 kg hay, 3 kg straw and 50 g urea had no effect. Rumen NH3 increased after feeding, then slowly decreased.

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Accession: 000357918

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