| Sumario: | Discusses factors affecting morbidity and mortality of the Ethiopian highland sheep both on-farm and on-station at Debre Berhan between 1989 and 1990. Primary causes of infections origin resulted in high proportional morbidity (88.4 percent on-farm) and mortality (72.9 percent on-farm and 71.8 percent on-station) rates. Nutritional and management factors were also responsible for mortalities of lambs. Ectoparasites, nasal nyiasis, health management factors, gastro-intestinal parasites, pneumonia, fasciolasis, and enteritis also were found to be causes of morbidity and mortality. Suggests a proper health management intervention involving vaccination, strategic anthelmintic treatment and feeding management to alleviate the major health problems.
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