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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

The findings of an FAO project on the effects of R. appendiculatus and A. hebraeum on productivity in cattle (performed at the veterinary field station in Mazowe in the highveld of Zimbabwe) are reviewed. [Some of this work has already been published in Veterinary Parasitology, 30: 149-164 (1988); ...

Author(s)
Norval, R. A. I.
Citation
Parassitologia (Roma), 1990, 32, 1, pp 153-163
Abstract

T. p. bovis isolates were tested for their immunizing capacity under natural field challenge on Willsbridge Farm in the highveld of Zimbabwe. 15 susceptible Sussex yearlings (about 14 months old) were immunized with the Boleni stock and 15 with a mixture of 3 isolates from the farm, using...

Author(s)
Koch, H. T.; Kambeva, L.; Ocama, J. G. R.; Munatswa, F. C.; Franssen, F. F. J.; Uilenberg, G.; Dolan, T. T.; Norval, R. A. I.
Citation
Veterinary Parasitology, 1990, 37, 3-4, pp 185-196
Abstract

A survey showed that Rhipicephalus lunulatus Neum. was widely distributed in Zimbabwe, where it occurred in woodland or woodland-savannah habitats receiving 550-1 200 mm rain per annum. In the adult stage, the tick was parasitic on a variety of domestic and wild ungulates and carnivores. R....

Author(s)
Norval, R. A. I.; Tebele, N.
Citation
Zimbabwe Veterinary Journal, 1983, 13, 3/4, pp 34-37
Abstract

During 1982-83 a survey of diseases of domestic animals was carried out in three Communal Lands in Manicaland. Antibodies to Babesia bigemina and B. bovis were detected in a large proportion of the cattle sampled. No cattle had antibodies to the Theileria parva group of diseases, although Theileria ...

Author(s)
Bryant, B. A.; Norval, R. A. I.
Citation
Zimbabwe Veterinary Journal, 1985, 16, No. 1/2, pp 9-17
Abstract

This article (originally published in Rhodesian Veterinary Journal, 10 (1979)) discusses the history of tick-borne and tick-associated diseases in cattle (Chrysomya bezziana myiasis (frequently associated with the bites of Hyalomma spp.), rhipicephaline tick toxicosis, sweating sickness (caused by ...

Author(s)
Lawrence, J. A.; Norval, R. A. I.
Citation
Historia Medicinae Veterinariae, 1987, 12, 4, pp 89-101

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