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A note on sustained release of chromic oxide in the rumen of sheep from a chromic oxide-dental plaster pellet

Published online by Cambridge University Press:  02 September 2010

J. E. Troelsen
Affiliation:
Experimental Farm, Research Branch, Canada Department of Agriculture, Swift Current, Saskatchewan
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Extract

Pellets of chromic oxide (Cr2O3) and dental plaster for administration of Cr2O3 to ruminants were developed by Pigden and Brisson (1957). When Cr2O3 was administered to sheep in this manner, Troelsen (1961) observed that digestibility coefficients determined by the Cr2O3-ratio method were very variable, and deviated from those obtained by total collection of faeces. It was also observed that the rate at which the pellets disappeared from the rumen or reticulum was correlated with the percentage of alfalfa hay (r = 0 83) and oat grain (r = –0 80) in the diet and that the abomasal ingesta contained pellets or pieces of same in the process of disintegration.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1965

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References

REFERENCES

Pidgen, W. J., & Brisson, G. J., 1957. Note on a chromium oxide pellet to provide uniform release of this indicator in the rumen of cattle. Canad. J. Anim. Sci., 37: 185.Google Scholar
Troelsen, J. E., 1961. Preliminary observations in the use of a sustained release pellet for administration of chromic oxide to sheep in digestibility studies. Canad. J. Anim. Sci., 41: 71.CrossRefGoogle Scholar