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Ruminal vitamin A and E disappearance of several vitamin supplements

Published online by Cambridge University Press:  05 November 2021

F. Masoero ,
M. Moschini ,
T. Bertuzzi ,
F. Rossi  and
G. Piva
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Extract

The lack of vitamins in ruminants, might impair normal metabolic growth and reproductive functions. Borderline vitamin deficiency might be manifested as impaired fertility before clinical symptoms appear. Specific vitamin requirements for normal reproduction are not suggested for dairy cow nutrition. Vitamin loss in the rumen occur through engulfment, oxidation and degradation by the rumen bacteria. Vitamin A is extensively degraded in the rumen, and up to 50% of vitamin E does not reach the small intestine (Shin and Owens, 1990). The aim of this work was to evaluate the rumen disappearance and the intestinal digestibility of conventional and rumen protected (RP) vitamin A and E.

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Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 161
Copyright
Copyright © British Society of Animal Science 1997

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References

Bourgeois, C.F., Hel, S.H., Belliot, J.P., George, P.R., Slomianny, C.A. 1985. Disposable cartridge extraction of retinol and alpha-tocopherol from feed-stuffs. J. Assoc. Off. Anal. Chem., 68 (6), 1121–1125.Google Scholar
SAS Institute (1988) SAS/STAT User's Guide, Version 6, Volume 1. SAS Inst Inc, Cary, NC, USA.Google Scholar
Shin, I.S. and Owens, F.N. 1990. Ruminal and intestinal disappearance of several sources of vitamin E. J. ofAnim. Sci. 68 (suppl.): 544 (Abstr.)Google Scholar