Trypanotolerance of N'Dama cattle is reviewed and also resistance to gastrointestinal helminths, ticks and some tick-transmitted diseases (dermatophilosis, anaplasmosis and babesiosis).

A personal view of ways to control cattle parasites, with particular reference to the situation in Zimbabwe, is given. Early history, schistosomes and ticks, host-parasite relationships and control, trypanosomiasis, immunization against parasites and indications for eradication are the topics...

The blood parasites of indigenous camels (n=310), sheep (331), goats (348) and cattle (43) were investigated in several localities in Saudi Arabia that are well isolated from any possible mixing with imported animals. Trypanosoma evansi (at a prevalence of 13.2%) and Eperythrozoon sp. (3.9%) were...

Thirty Boran (Bos indicus) cattle, which had been immunized by infection with local strains of Theileria parva parva, T. p. lawrencei [T. lawrencei] and T. mutans and treated with parvaquone, were exposed to natural theileriosis challenge in 2 areas in Kenya. In both areas wild populations of the...

Calves, breeding cows and milch cows on 4 farms in the Valle and Quindio Districts of Colombia were examined by blood smears and serologically for blood parasites monthly (calves) or quarterly between August 1988 and July 1989. At each sampling, the numbers of ticks (Boophilus microplus) present...

The results of a survey of the ticks and blood parasites of livestock in the south-Sudanian zone of Senegal are presented. Forty N'Dama cattle, 40 Djallonké [West African Dwarf] sheep and 40 West African Dwarf goats were deticked over a period of 15 months, revealing the following tick species: ...