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Temporal effects of protein supply on local immunity to nematodes in periparturient ewes

Published online by Cambridge University Press:  20 November 2017

J.G.M. Houdijk ,
I. Kyriazakis ,
J. Huntley ,
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

There is an increasing body of evidence to support the view that the periparturient breakdown of immunity to parasites has a nutritional basis (Houdijk et al., 2003). Nutritional improvement of expression of immunity to parasites has been assessed indirectly through changes in faecal egg counts (FEC) and worm burden. A direct assessment of effector responses is hampered by its local nature and would be limited to analysing gut tissue samples obtained at slaughter. However, recently an abomasal cannulation methodology was developed that allows for serial sampling of the abomasal mucosa throughout the periparturient period in sheep (Huntley et al., in press). Here, this methodology was used to assess temporal effects of metabolizable protein (MP) supply to parasitized, periparturient sheep on abomasal inflammatory cells that are associated with expression of immunity to nematodes.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 88
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
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
Huntley, J.F., Jackson, F., Coop, R L., Macaldowie, C., Houdijk, J.G.M., Familton, A.S., Xieh, H.L., Stankiewicz, M. and Sykes, A.R. The sequential analysis of local inflammatory cells during abomasal nematode infection in periparturient sheep. Veterinary Immunology and Immunopathology (in press).Google Scholar