| ectoparasites of small ruminants in three selected agro-ecological sites of tigray region, ethiopia. | a study on ectoparasites of small ruminants in three selected agro-ecological sites of tigray region, ethiopia disclosed an overall prevalence of 55.5% and 58% in each examined 750 sheep and goats, respectively. in the sheep population, melophagus ovinus (19.1%), tick infestations (16%), damalinia ovis (15.3%), linognathus africanus (11.5%), and ctenocephalides felis (9%) were the major ectoparasites. the major ectoparasites identified in goats were tick infestations (29.7%), l. africanus (27.9% ... | 2010 | 20369295 |