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Relationships between leucocyte subsets, performance, diet and bacterial load in Large White cross Landrace pigs

Published online by Cambridge University Press:  20 November 2017

M. Clapperton ,
S.C. Bishop ,
K. Hillman ,
B.P. Gill  and
E.J. Glass
M. Clapperton
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS.
S.C. Bishop
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS.
K. Hillman
Affiliation:
SAC, Veterinary Science Division, Aberdeen AB21 9YA
B.P. Gill
Affiliation:
MLC, PO Box 44, Winterhill House, Snowdon Drive, Milton Keynes MK6 1AX
E.J. Glass
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS.
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Extract

The exposure of pigs to different pathogens compromises productivity (Greiner et al., 2000), i.e. reduces weight gain and food intake, even in the absence of clinical disease. Associations between productivity and a range of immunological traits have been demonstrated in apparently healthy animals facing the same infectious challenge (Clapperton et al., 2003). Specifically, it was demonstrated that some leucocyte proportions (monocytes, B cells, MIL-4 (NK) positive cells) increased significantly as performance decreased. This study aims to verify these previous results on an independent population of pigs, examine relationships between immune measures and actual bacterial counts in the gut, and examine the influence of diet type on these measurements.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 17
Copyright
Copyright © The British Society of Animal Science 2004

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References

Clapperton, M., Bishop, S.C. and Glass, E.J. 2003. Leucocyte sub-sets and acute phase proteins are associated with productivityin Large White pigs Proceedings of BSAS, 32.Google Scholar
Greiner, L.L., Stahly, T.S. and Stabel, J.J. 2000. Quantitative relationship of systemic virus concentration on growth and immune response in pigs. Journal of Animal Science 78: 2690–2695.CrossRefGoogle ScholarPubMed
Hillman, K., Hunt, B., Davies, R. and Gill, B.P. 2004. The microbial status of the pig and its environment under different housing and feeding systems: 1. liquid vs. dry feeding in fully slatted and straw bedded housing, Proceedings of BSAS Google Scholar
Thompson, J.E., Matthews, K.R., Taylor, L. and Gill, B.P. 2004. The growth performance, carcase and meat quality of pigs finished under different housing and feeding systems. 1. liquid vs. dry feeding in fully slatted and straw bedded housing, Proceeding of BSAS Google Scholar