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The effect of trypanosomosis on the resumption of postpartum ovarian function and oestrus activity was studied in small East African zebu cows maintained under natural trypanosomosis challenge. This was done through the determination of milk progesterone levels using the enzyme linked immunosor...
Research has been undertaken since 1986 in the Ghibe valley, southwest Ethiopia, monitoring approximately 840 village East African Zebu cattle monthly to assess the effects of trypanosomiasis on productivity. The average monthly trypanosome prevalence between 1986 and 1989 was about 30 percent. M...
An average of 840 East African Zebu cattle have been monitored in the Ghibe valley, south west Ethiopia since 1986. Despite a high prevalence of drug resistance, regular Berenil treatment appears to have maintained these cattle at reasonable levels of productivity. However, when corrected for fre...
Determines factors affecting trypanosome prevalence in Zebu cattle exposed to high trypanosomiasis risk in south west Ethiopia. Studies the occurrence of trypanosome infection in adult cattle, monthly trypanosome prevalence in calves and cattle, prevalence in male and female adult cattle, relatio...
A tsetse control campaign using an insecticidal cypermethrin "pour-on" applied monthly to village Zebu cattle in Ghibe in southwest Ethiopia has been in operation for over six years. For four of these years farmers have paid a cost-recovery price for each animal given treatment. Relative densitie...
It is useful to be able to estimate the incidence of new infections in cattle exposed to a high challenge of drug resistance trypanosomes; with this information the impact of an intervention that improves the control of trypanosomosis can be better understood. Approximately 750 Ethiopian Highland...
A tsetse control experiment with 500 deltamethrin-impregnated targets was initiated in the Ghibe Valley, south-west Ethiopia, in April 1990. The theft of a large number of targets following the socio-political disturbances of May 1991 spoiled major reductions in tsetse density and trypanosome pre...
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