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VetMed Resource

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

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Chemoprophylaxis with an ivermectin sustained-release bolus in the first grazing season on the resistance of cattle to gastrointestinal nematodes during the following grazing season was investigated. In 1993 and 1994 dairy replacement calves were either given one bolus at the start of their first...

Claerebout, E.; Hollanders, W.; Dorny, P.; Vercruysse, J.
Veterinary Record, 1997, 141, 17, pp 441-445