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Screening of fibrolytic enzymes as additives for ruminant diets: relationship between enzyme activities and the in vitro degradation of enzyme-treated forages

Published online by Cambridge University Press:  20 November 2017

D. Colombatto ,
D.P. Morgavi ,
A.F. Furtado  and
K.A. Beauchemin
D. Colombatto
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, T1J 4B1, Canada
D.P. Morgavi
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, T1J 4B1, Canada
A.F. Furtado
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, T1J 4B1, Canada
K.A. Beauchemin
Affiliation:
Agriculture and Agri-Food Canada, Lethbridge Research Centre, PO Box 3000, T1J 4B1, Canada
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Extract

Results in the literature concerning the efficacy of feed enzymes for ruminant diets have been mixed. Commercial preparations currently used are fermentation extracts containing several enzymic activities. It has been suggested that ruminal fermentation of grass and maize silages is enzyme-limited (Wallace et al., 2001). In order to design better enzyme additives, the enzyme activities likely to affect the animal responses should be identified. This study examined 23 commercial enzyme preparations for their biochemical properties and their ability to influence the in vitro degradation of alfalfa and maize silage.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2002 , 2002 , pp. 210
Copyright
Copyright © The British Society of Animal Science 2002

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References

Wallace, R J, Wallace, S J A, McKain, N, Nsereko, V L & Hartnell, G F. 2001. Influence of supplementary fibrolytic enzymes on the fermentation of corn and grass silages by mixed ruminal microorganisms in vitro . Journal of Animal Science, 79: 1905–1916.CrossRefGoogle ScholarPubMed