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Relationship of digestibility and certain rumen fluid components to level of feed intake and time of sampling after feeding



Relationship of digestibility and certain rumen fluid components to level of feed intake and time of sampling after feeding



J Dairy Sci 50(3): 334-343



No difference in digestibility was found among 4 levels of intake of reed canary hay fed to sheep. Effect of these rations and of the time of sampling after feeding on various rumen fluid components were determined by using fistulated cows. Increased level of intake lowered pH, total volatile fatty acid content and the proportions of iso-butyric and iso-valeric acids in the rumen fluid. Significant changes in level of pH, total vilatlle bases and acids and ratios of individual acids were observed during the 8 hr. interval between feedings. Results show that knowledge of the direction and magnitude of these changes is essential for a valid comparison of metabolites in rumen fluid resulting from the feeding of different rations.

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Accession: 014639317

Download citation: RISBibTeXText

DOI: 10.3168/jds.s0022-0302(67)87420-4


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