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Accueil du site → Doctorat → Royaume-Uni → 1986 → The effects of disease as constraint to camel productivity in northern Kenya

University of London (1986)

The effects of disease as constraint to camel productivity in northern Kenya

Simpkin, S.P

Titre : The effects of disease as constraint to camel productivity in northern Kenya

Auteur : Simpkin, S.P

Université de soutenance : University of London

Grade : Doctor of Philosophy (PhD) 1986

Résumé
Under the auspices of UNESCO’s Integrated Project in Arid Lands (I.P.A.L.), research was undertaken to determine the benefits and cost effectiveness of scientific veterinary treatment on camel productivity in Northern Kenya. Data was collected from two herds of camels, one receiving modern veterinary treatments, and the other, acting as a control, managed in the traditional Rendille manner. Results of the veterinary treatment (Rutagwenda, 1982) showed the treatment herd benefited by having significantly higher Packed Cell Volumes, and significantly lower tick and helminth burdens when compared to the control herd. Improved health status subsequently increased significantly the herd mean daily milk yield (P < 0.05), duration of lactation (P < 0.005), and the mean total lactational yield by 67% (P < 0.005). Milk yields were also significantly affected by breed, watering frequency, calf survival and calving interval. There was no proof that veterinary input directly affects the milk quality or composition. Veterinary input increased growth rates of camel calves, both directly, by improving health status, and indirectly by increasing the dam’s milk yield. Birth weights of treatment herd calves were significantly higher (P < 0.005) than non-treatment herd calves. Veterinary input did not alter adult body weights. Breed, sex and range conditions were other factors that affect camel meat production. Disease control reduced calving intervals significantly(P < 0.005), and also reduced the number of abortions or pre-nataldeaths and led to a higher calving percentage. Mortality, especially amongcalves less than one year old, was radically reduced by the application of modernveterinary drugs, and this led to larger herd growth. The increased herd productivity resulting from veterinary input wascalculated, and although it did not cover the costs of the routine blankettreatment of all animals, it would cover the costs of the recommended veterinary programme.

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