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Browsing University of Hertfordshire by Author "Park, M."
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The genetic basis of resistance to Ostertagia circumcincta in lambs
Stear, M.J.; Bairden, K.; Bishop, S.C.; Buitkamp, J.; Duncan, J.L.; Gettinby, G.; McKellar, Quintin; Park, M.; Parkins, J.J.; Reid, S.W.J. (1997-09)The relationship between Ostertagia (Teladorsagia) circumcincta and sheep is one of the best understood host-parasite relationships in any species. The key components of resistance have been quantified, the extent of genetic ... -
Genetic parameters for faecal egg count following mixed, natural, predominantly Ostertagia circumcinta infection and relationships with live weight in young lambs
Bishop, S.C.; Bairden, K.; McKellar, Quintin; Park, M.; Stear, M.J. (1996-12)Faecal egg counts and live weights were measured on approximately 200 predominantly twin-born Scottish Blackface lambs each year for 3 years, from 2 to 6 months of age. Measurements were made at 4-week intervals following ... -
How hosts control worms
Stear, M.J.; Bairden, K.; Duncan, J.L.; Holmes, P.H.; McKellar, Quintin; Park, M.; Strain, S.; Murray, M.; Bishop, S.C.; Gettinby, G. (1997-09-04)Nematodes are a major cause of disease and death in humans, domestic animals and wildlife. Understanding why some individuals suffer severely whereas others exposed to the same infection remain healthy may assist in the ... -
The processes influencing the distribution of parasitic nematodes among naturally infected lambs
Stear, M.J.; Bairden, K.; Bishop, S. C.; Gettinby, G.; McKellar, Quintin; Park, M.; Strain, S.; WALLACE, D.S. (1998-08)The impact of mixed, nematode infection upon a group of animals will depend upon the number of nematodes present, how they are distributed among hosts and whether individuals that are heavily parasitized with one species ...