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A note on the effect of management unit on litter size of crossbred British Saddleback pigs

Published online by Cambridge University Press:  02 September 2010

J. R. Morton
J. R. Morton
Affiliation:
Department of Applied Biology, University of Cambridge, Pembroke Street, Cambridge CB2 3DX
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Abstract

Analysis of data from British Saddleback females mated to Landrace males on 18 multiplying units for a commercial breeding company shows that the important herd effects known to affect litter size in pigs are truly environmental in origin.

Type
Research Article
Information
Animal Production , Volume 27 , Issue 3 , December 1978 , pp. 355 - 356
Copyright
Copyright © British Society of Animal Science 1978

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References

REFERENCES

Legault, C. 1969. [Statistical and genetical study of the breeding performance of Large White sows. 1. Effect of herd, season, party and month of birth.] Ann. Genet. Set. anim. 1:281–298.Google Scholar
Rico, C. and Menchaca, M. 1975. Reproductive performance of the Duroc breed in Cuba. 1. Effect of different sources of variation. Cuban J. agric. Sci. 9: 135–148.Google Scholar
Strang, G. S. 1970. Litter productivity in Large White pigs. 1. The relative importance of some sources of variation. Anim. Prod. 12: 225–233.Google Scholar