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Effect of Methionine supplementation of the diet on growth of hoof horn and mohair in Angora goats

Published online by Cambridge University Press:  05 November 2021

M. A. Mengal ,
H. Galbraith ,
M. Souri  and
J. R. Scaife
M. A. Mengal
Affiliation:
Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB24 5UA
H. Galbraith
Affiliation:
Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB24 5UA
M. Souri
Affiliation:
Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB24 5UA
J. R. Scaife
Affiliation:
Department of Agriculture, University of Aberdeen, 581 King Street, Aberdeen AB24 5UA
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Extract

Lameness is a major welfare problem in farm animals. Lesions of the hoof arising from poor growth of hoof horn in dairy cows has been associated with inadequate keratinisation (Kempson and Logue, 1993). The sulphur amino acid cystine is an important component of hard keratins in sound hoof horn and hair fibre and is required in a quantity proportionately larger than that needed for most other body tissues. Cystine may be derived, in ruminants, directly from microbial and food protein or synthesised post-absorptively from methionine in the transulphuration pathway particularly in the liver. The objective of present study was to investigate the relative responsiveness of both hoof horn and mohair to methionine supplementation of the diet.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 168
Copyright
Copyright © British Society of Animal Science 1997

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References

Kempson, S.A. and Logue, D. N. 1993. Ultra structural observations of hoof horn from dairy cows: Changes in the white line during the first lactation. The Veterinary Record 132: 524–527.CrossRefGoogle Scholar