Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya
This study is evaluating the resistance of Red Maasai sheep to endoparasite infections relative to Dorper sheep and a range of Red Maasai x Dorper crosses. The results confirm previous Reports that both Red Maasai ewes and lambs are more resistant to endoparasites (predominantly Haemonchus contortus...
| Autores principales: | , , , |
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| Formato: | Conference Paper |
| Lenguaje: | Inglés |
| Publicado: |
10th World Congress on Genetics Applied to Livestock Production
1994
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/50596 |
| _version_ | 1855515945719562240 |
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| author | Baker, R.L. Mwamachi, D.M. Audho, James O. Thorpe, W.R. |
| author_browse | Audho, James O. Baker, R.L. Mwamachi, D.M. Thorpe, W.R. |
| author_facet | Baker, R.L. Mwamachi, D.M. Audho, James O. Thorpe, W.R. |
| author_sort | Baker, R.L. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This study is evaluating the resistance of Red Maasai sheep to endoparasite infections relative to Dorper sheep and a range of Red Maasai x Dorper crosses. The results confirm previous Reports that both Red Maasai ewes and lambs are more resistant to endoparasites (predominantly Haemonchus contortus) than Dorper sheep. Resistance was shown by the ability of the Red Maasai to maintain higher packed cell volume levels (i.e. to resist anaemia), lower faecal egg counts and markedly lower lamb mortality. Heritabilities for PCV and FEC in lambs were low at weaning (3 months of age) but ranged from 0.20 to 0.30 for FEC in 10-month old lambs. From a preliminary assessment of total flock productivity it is found that sheep producers could double their lamb off-takes if they used Red Maasai or Red Maasai-crosses instead of Dorpers. |
| format | Conference Paper |
| id | CGSpace50596 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1994 |
| publishDateRange | 1994 |
| publishDateSort | 1994 |
| publisher | 10th World Congress on Genetics Applied to Livestock Production |
| publisherStr | 10th World Congress on Genetics Applied to Livestock Production |
| record_format | dspace |
| spelling | CGSpace505962023-02-15T09:30:26Z Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya Baker, R.L. Mwamachi, D.M. Audho, James O. Thorpe, W.R. sheep genetic resistance nematoda maasai sheep genotypes lambs heritability This study is evaluating the resistance of Red Maasai sheep to endoparasite infections relative to Dorper sheep and a range of Red Maasai x Dorper crosses. The results confirm previous Reports that both Red Maasai ewes and lambs are more resistant to endoparasites (predominantly Haemonchus contortus) than Dorper sheep. Resistance was shown by the ability of the Red Maasai to maintain higher packed cell volume levels (i.e. to resist anaemia), lower faecal egg counts and markedly lower lamb mortality. Heritabilities for PCV and FEC in lambs were low at weaning (3 months of age) but ranged from 0.20 to 0.30 for FEC in 10-month old lambs. From a preliminary assessment of total flock productivity it is found that sheep producers could double their lamb off-takes if they used Red Maasai or Red Maasai-crosses instead of Dorpers. 1994 2014-10-31T06:21:24Z 2014-10-31T06:21:24Z Conference Paper https://hdl.handle.net/10568/50596 en Limited Access 10th World Congress on Genetics Applied to Livestock Production |
| spellingShingle | sheep genetic resistance nematoda maasai sheep genotypes lambs heritability Baker, R.L. Mwamachi, D.M. Audho, James O. Thorpe, W.R. Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya |
| title | Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya |
| title_full | Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya |
| title_fullStr | Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya |
| title_full_unstemmed | Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya |
| title_short | Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya |
| title_sort | genetic resistance to gastrointestinal nematode parasites in red maasai sheep in kenya |
| topic | sheep genetic resistance nematoda maasai sheep genotypes lambs heritability |
| url | https://hdl.handle.net/10568/50596 |
| work_keys_str_mv | AT bakerrl geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya AT mwamachidm geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya AT audhojameso geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya AT thorpewr geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya |