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Effect of untreated and formaldehyde treated whole linseed on the performance and fatty acid composition of milk produced by Friesland ewes

Published online by Cambridge University Press:  20 November 2017

R.G. Wilkinson ,
V.E. Fry  and
L.A. Sinclair
R.G. Wilkinson
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire, TF10 8NB UK
V.E. Fry
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire, TF10 8NB UK
L.A. Sinclair
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire, TF10 8NB UK
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Extract

Increasing the n-3 polyunsaturated fatty acid (PUFA) content of ruminant products is widely accepted as a potential means of reducing the incidence of cardio-vascular disease in man. However, after ingestion dietary PUFAs are extensively hydrogenated in the rumen. Whole linseed is particularly high in a-linolenic acid (C18:3 n-3) and the feeding of whole seeds with an intact seed coat has been reported to double the duodenal supply of C18:3 in wether lambs (Wachira et al. 1998). This supply may be further enhanced by treating the whole seed with formaldehyde (Gulati et al. 1997). The objective of the experiment was to investigate the effect of untreated and formadehyde treated whole linseed on the performance and fatty acid composition of milk produced by Friesland ewes.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2000 , 2000 , pp. 152
Copyright
Copyright © The British Society of Animal Science 2000

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References

Gulati, S.K., Byers, E.B., Byers, Y.G., Ashes, J.R. and Scott, T.W. (1997). Effect of feeding different fat supplements on the fatty acid composition of goat milk. Animal Feed Science and Technology 66: 159–164.Google Scholar
Wachira, A.M. et al. (1998). Rumen biohydrogenation of poly-unsaturated fatty acids and their effect on microbial efficiency in sheep. Proceedings of the British Society of Animal Science, 36.Google Scholar