REDUCTION IN PARTICLE SIZE DURING RUMINATION IN CATTLE
- 1 December 1984
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Animal Science
- Vol. 64 (5) , 339-340
- https://doi.org/10.4141/cjas84-289
Abstract
Measurements of chewing behavior and of large particle breakdown during rumination were made with two steers given chaffed alfalfa or brome grass once daily for 4 h. Large particle content of boli retained in the mouth for chewing was enhanced by 38% compared to that in the regurgitated bolus, since some small particles were swallowed immediately with fluid. 58–75% of this coarse material was reduced to small particles by rumination. Specific fragility of both roughages was doubled at 16 vs. 4 h after feeding. Key words: Rumination, chewing, cattleKeywords
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