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. 1991 Oct;12(3-4):219-27.
doi: 10.1007/BF01193468.

Towards the selection of cattle for tick resistance in Africa

J J de Castro  1 , P B Capstick, S Nokoe, H Kiara, F Rinkanya, R Slade, O Okello, L Bennun
Affiliations

Towards the selection of cattle for tick resistance in Africa

J J de Castro et al. Exp Appl Acarol. 1991 Oct.

Abstract

Half-body tick collections and visual assessment of tick burdens were performed monthly over six months on 100 bulls at the Kenya National Boran Stud, Mutara Ranch, Kenya. Boophilus decoloratus predominated among several tick species infesting the animals. Burdens of B. decoloratus and total tick burdens were highly correlated. Rankings of relative tick resistance among bulls were consistent from month to month. Rankings based on visual assessment were very close to those based on actual tick burdens. Animals with thin skins appeared to carry fewer ticks, but tick burden bore no relationship to coat colour. The results suggest that simple visual inspection of total tick burdens may be a suitable basis for the selection of tick resistance in cattle.

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