| unusual manifestation of a concurrent demodectic and sarcoptic mange in a zebu-friesian cross-bred heifer. | we describe a rare case of a concurrent demodectic and sarcoptic mange in a 2-year-old heifer in khartoum, sudan. the lesions were massive lumps of granulomatous tumour-like dermatitis with thick, nodular folds mainly covering the head, neck and shoulders. histopathological examination of the lesions revealed the presence of both demodex bovis and sarcoptes scabiei. the animal died regardless of the anti-parasitic treatment it received. | 2006 | 17120626 |
| ticks (acari:ixodidae) of the blue and white nile ecosystems in the sudan with particular reference to the rhipicephalus sanguineus group. | twenty-four adult ixodid tick species, infesting livestock and some wildlife hosts along the blue and white nile in the sudan, were identified. three species, boophilus geigyi, rhipicephalus camicasi and r. bergeoni, were recorded for the first time from the sudan. tick numbers on indigenous breeds of cattle (bos indicus) were relatively low, ranging between 17.1 and 40.5 per animal. young cattle grazing with the herd carried significantly fewer ticks than older animals. with the exception of b. ... | 1987 | 3331134 |