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The survival rates of Dorper, Red Maasai and crossbred lambs born over a period of 6 years at Diani Estate, Coast Province, Kenya were compared using the Cox mixed proportional hazards model with a random (frailty) term for sire. Of the 1785 lambs born, proportionately 0.44 died before they were ...


Nguti, R.Janssen, P.Rowlands, G.J.Audho, James O.Baker, R.L.[Survival of Red Maasai, Dorper and crossbred lambs in the sub-humid tropics]Survival of Red Maasai, Dorper and crossbred lambs in the sub-humid tropics

This study quantifies comprehensively both within and between breed differences in resistance to natural infection with gastrointestinal parasites. This research programme was developed from an earlier study in coastal Kenya involving Dorper and Red Maasai X Dorper sheep. It is now part of an ILC...


Baker, R.L.Reynolds, L.Mwamachi, D.M.Audho, James O.Magadi, M.Miller, J.E.[Genetic resistance to gastrointestinal parasites in Dorper and Red Maasai X Dorper lambs in coastal Kenya]Genetic resistance to gastrointestinal parasites in Dorper and Red Maasai X Dorper lambs in coastal 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 contor...


Baker, R.L.Mwamachi, D.M.Audho, James O.Thorpe, W.R.[Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya]Genetic resistance to gastrointestinal nematode parasites in Red Maasai sheep in Kenya

Resistance and resilience to naturally acquired gastro-intestinal (GI) nematode parasite infections (predominantly Haemonchus contortus) were studied in 1785 lambs born over six lambings (1991 to 1996) consisting of 212 Red Maasai, 311 Dorper and 1262 crossbred (Red Maasai-Dorper) lambs in the su...


Baker, R.L.Nagda, S.M.Rodríguez Zas, S.L.Southey, B.R.Audho, James O.Aduda, Eric O.Thorpe, W.R.[Resistance and resilience to gastro-intestinal nematode parasites and relationships with productivity of Red Maasai, Dorper and Red Maasai X Dorper crossbred lambs in the sub-humid tropics]Resistance and resilience to gastro-intestinal nematode parasites and relationships with productivity of Red Maasai, Dorper and Red Maasai X Dorper crossbred lambs in the sub-humid tropics

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