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Genetic resistance to internal parasites in lambs

  • K. L. Howells (a1), B. T. Wolf (a1), W. Haresign (a1), R. M. Lewis (a2) and M. H. Davies (a3)...


Progressive inefficacy of chemoprophylactic therapy to control gastro-intestinal (GI) nematode infection in sheep has been a major contributory factor in stimulating research into the development of alternative means of internal parasite control. This research aims to investigate the possibilities for selecting UK sheep for increased genetic resistance to naturally acquired GI nematode parasite infections.



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Bishop, S.C., Bairden, K., McKellar, Q.A., Park, M. and Stear, M. 1996. The inheritance of faecal egg count following natural predominantly Ostertagia circumcincta infection in Scottish Blackface lambs. Animal Science 63: 423428.


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