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The effects of metabolisable protein on the periparturient relaxation of immunity against Teladorsagia circumcincta in mature Friesland dairy ewes

Published online by Cambridge University Press:  20 November 2017

E.C. Partington ,
L.A. Sinclair ,
A.M. Mackenzie  and
J. Donaldson
E.C. Partington*
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K
L.A. Sinclair
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K
A.M. Mackenzie
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K
J. Donaldson
Affiliation:
Harper Adams University College, Newport, Shropshire, TF10 8NB, U.K
*
E-mail: [email protected]
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Extract

With increasing incidence in anthelmintic drench resistance, it is appropriate that more sustainable approaches to controlling nematode infections in livestock should be investigated. It is believed that larval contamination of pasture originates from the mature breeding ewe during the periparturient breakdown of immunity. Donaldson et al. (1998) reported that increasing the metabolisable protein (MP) supply of the ewe in late pregnancy may moderate the periparturient relaxation of immunity. The most pronounced results to date are those involving the supplementation of diets with fishmeal, believed to be related to the ‘protected’ protein content of the ration. Fishmeal increases both MP and polyunsaturated fatty acid content of the diet but as yet it is unclear which of these components of the diet may affect immunity to parasites. This study investigated the role of MP supply in maintaining immunity to parasitic infection in pedigree Friesland dairy ewes.

Type
ISAE
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 31
Copyright
Copyright © The British Society of Animal Science 2003

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References

Donaldson, J., van Houtert, M.F.J. and Sykes, A.R., 1998, The effect of nutrition on the perparturient parasite status of mature ewes. Animal Science 67: 523–533.CrossRefGoogle Scholar