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A three-year study of morbidity, mortality and reproduction in goats used as hosts for the tsetse, Glossina morsitans morsitans (Westwood), in Tanzania

Published online by Cambridge University Press:  19 September 2011

P. V. Warner ,
D. Mung'ong'o ,
E. Mrisho  and
D. L. Williamson
P. V. Warner
Affiliation:
Tsetse Research Project, Tanga, Tanzania
D. Mung'ong'o
Affiliation:
Tsetse Research Project, Tanga, Tanzania
E. Mrisho
Affiliation:
Tsetse Research Project, Tanga, Tanzania
D. L. Williamson
Affiliation:
Tsetse Research Project, Tanga, Tanzania
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Abstract

The individual histories of a herd of up to 671 goats used as hosts for rearing the haematophagous tsetse are summarized in terms of reproductive performance, morbidity and mortality during the period 1976–1978. The data are presented and discussed in relation to the unique management conditions imposed by a fly-rearing programme. The average kidding interval was 11.6 months, with 29.6% twinning. Kids had average birth and weaning weights of 2.3 and 13.6 kg, respectively. The average weaning rate of 40.5% was accompanied by 10.9% cull and 48.6% death losses. The reproductive performance of the East African doe compared well with that of improved breeds, although its lifespan was shorter in confinement. Monthly mortality averaged 2.7% while morbidity averaged 15.9%. The causes of disease are summarized by age groups, and a seasonal pattern of disease incidence was associated with weather extremes and availability and quality of nutriment.

Keywords

Tsetse rearingreproductive performancegoat morbiditygoat mortalitygoat managementeffect of nutritionkids
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 6 , Issue 1 , February 1985 , pp. 17 - 25
Copyright
Copyright © ICIPE 1985

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