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VetMed Resource

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

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Two trials with stabled milking cows were carried out. In the first, cows were either experimentally infected with O. ostertagi larvae or served as naturally-infected controls. In the 2nd, cows were treated the same as in the first trial, but in addition half of the number of cows of each group...

Kloosterman, A.; Borgsteede, F. H. M.; Eysker, M.
Veterinary Parasitology, 1984, 17, 4, pp 299-308

Bulk milk samples were collected from 134 farms at monthly intervals on 3 occasions in 1992. ELISA titres to Ostertagia ostertagi found in October at the end of the grazing season served as a basis to select 16 and 18 farms as having high and low levels of parasitism, respectively. Heifers and cows ...

Kloosterman, A.; Ploeger, H. W.; Pieke, E. J.; Lam, T. J. G. M.; Verhoeff, J.
Veterinary Parasitology, 1996, 64, 3, pp 197-205