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Liveweight gains (LWGs) of 3 groups of Africander steers, maintained in the same pasture in Zimbabwe and exposed to zero, medium or high numbers of larvae, nymphs and adults of A. hebraeum, were measured. Larvae and nymphs had no significant effect on LWG but adults had a large, statistically...

Norval, R. A. I.; Sutherst, R. W.; Jorgensen, O. G.; Gibson, J. D.; Kerr, J. D.
Veterinary Parasitology, 1989, 33, 3-4, pp 329-341