| prevalence and seasonal incidence of nematode parasites and fluke infections of sheep and goats in eastern ethiopia. | a 2-year abattoir survey was carried out to determine the prevalence, abundance and seasonal incidence of gastro-intestinal (gi) nematodes and trematodes (flukes) of sheep and goats in the semi-arid zone of eastern ethiopia. during may 2003 to april 2005, viscera including liver, lungs and gi tracts were collected from 655 sheep and 632 goats slaughtered at 4 abattoirs located in the towns of haramaya, harar, dire dawa and jijiga in eastern ethiopia. all animals were raised in the farming areas ... | 2007 | 17969715 |