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...
| Main Authors: | , , , |
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| Format: | Conference Paper |
| Language: | Inglés |
| Published: |
1994
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/70852 |
| _version_ | 1855517138552356864 |
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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 | CGSpace70852 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1994 |
| publishDateRange | 1994 |
| publishDateSort | 1994 |
| record_format | dspace |
| spelling | CGSpace708522023-02-15T13:11:24Z 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 genetics genotypes heritability genetic resistance nematoda 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 2016-02-08T09:03:20Z 2016-02-08T09:03:20Z Conference Paper https://hdl.handle.net/10568/70852 en Limited Access |
| spellingShingle | sheep genetics genotypes heritability genetic resistance nematoda 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 genetics genotypes heritability genetic resistance nematoda |
| url | https://hdl.handle.net/10568/70852 |
| work_keys_str_mv | AT bakerrl geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya AT mwamachidm geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya AT audhojameso geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya AT thorpewr geneticresistancetogastrointestinalnematodeparasitesinredmaasaisheepinkenya |