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VetMed Resource

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

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Abstract

In this update on drench resistance in New Zealand it is reported that in sheep, resistance to anthelmintics of the benzimidazole group is important, whereas in goats, benzimidazole, levamisole and ivermectin resistance are common.

Author(s)
McKenna, P. B.
Citation
Publication - Veterinary Continuing Education - Massey University, 1991, No. 134, pp 55-60
Abstract

A natural infection of grazing sheep by O. ostertagi, associated with clinical disease, is described. The mortalities were recorded at Kangaroo Island, South Australia, in a flock of 600 one-year-old Merino ewes and wethers. The sheep suffered from weakness and diarrhoea and one ewe and 3 wethers...

Author(s)
O'Callaghan, M. G.; Martin, R. R.; McFarland, I. J.
Citation
Australian Veterinary Journal, 1992, 69, 1, pp 19-20
Abstract

Current research in Australia, aimed at control of gastrointestinal nematode infections in livestock in the next century is progressing in 3 broad directions. First towards better control using existing anthelmintics through modifications to pharmacokinetics, together with integrated management...

Author(s)
Barger, I. A.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 23-32
Abstract

The epidemiology of Ostertagia ostertagi as primarily defined in weaner-yearling cattle in the USA and other parts of the world are reviewed and some of the factors which operate in population changes of the parasite through different age classes are considered under the headings: epidemiology in...

Author(s)
Williams, J. C.; Knox, J. W.; Loyacano, A. F.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 313-324