Parasites of domestic and wild animals in South Africa. VI. Helminths in calves on irrigated pastures on the Transvaal Highveld
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Date
Authors
Horak, Ivan Gerard
Louw, J.P.
Journal Title
Journal ISSN
Volume Title
Publisher
The Government Printer, Pretoria
Abstract
Sets of tracer calves, which were exposed for 2 months on irrigated pasture and then slaughtered, provided evidence of the extent of seasonal helminth infestation. Haemonchus spp. were the most abundant nematodes, the largest numbers of which were generally recovered from May-August. Marked inhibition of development in the 4th larval stage was noted from May-November. Trichostrongylus spp. were recovered in modest numbers with the highest burdens generally present in May, June and October. In the first year of the survey Cooperia spp. were recovered in small numbers, but in the second year burdens increased from February-June.
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Keywords
Veterinary Medicine
Sustainable Development Goals
Citation
Horak, IG & Louw, JP 1978, 'Parasites of domestic and wild animals in South Africa. VI. Helminths in calves on irrigated pastures on the Transvaal Highveld’, Onderstepoort Journal of Veterinary Research, vol. 45, no. 1, pp. 23-27.