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Effects of protein supply on immunity to Trichostrongylus colubriformis in lactating ewes

Published online by Cambridge University Press:  20 November 2017

J.G.M. Houdijk ,
I. Kyriazakis ,
F. Jackson  and
R.L. Coop
J.G.M. Houdijk*
Affiliation:
Animal Nutrition and Health Department, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG, UK
I. Kyriazakis
Affiliation:
Animal Nutrition and Health Department, Scottish Agricultural College, West Mains Road, Edinburgh EH9 3JG, UK
F. Jackson
Affiliation:
Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik EH26 0PZ, UK
R.L. Coop
Affiliation:
Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik EH26 0PZ, UK
*
*j.houdijk@ed.sac.ac.uk
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Extract

It has been suggested that the periparturient breakdown of immunity to parasites has a nutritional basis (Coop and Kyriazakis, 1999). The often observed breakdown of immunity to abomasal nematodes in lactating sheep is indeed sensitive to metabolizable protein (MP) scarcity (Houdijk et al., 2003). However, a periparturient breakdown of immunity to intestinal nematodes is less likely to occur (Jackson et al., 1988). This discrepancy suggests that immunity to abomasal and intestinal nematodes may differ in their sensitivity to changes in MP supply. The objective of this experiment was to assess whether immunity to intestinal nematodes in lactating sheep is sensitive to MP supply.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 7
Copyright
Copyright © The British Society of Animal Science 2004

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References

AFRC, 1993. Energy and protein requirements of ruminants. CAB International, Wallingford, Oxon, England.Google Scholar
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Houdijk, J.G.M., Kyriazakis, I., Jackson, F., Huntley, J.F. and Coop, R.L. 2003. Is the allocation of metabolisable protein prioritised to milk production rather than to immune functions in Teladorsagia circumcincta infected lactating ewes? International Journal for Parasitology 33: 327–338.Google Scholar
Jackson, F., Jackson, E. and Williams, J.T. 1988. Susceptibility of the pre-parturient ewe to infection with Trichostrongylus vitrinus and Ostertagia circumcincta . Research in Veterinary Science 45: 213–218.Google Scholar