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VetMed Resource

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Twenty-four calves were divided into 6 groups of 4 calves each. All calves received a primary infection of 50 000 larvae of both Ostertagia ostertagi and Cooperia oncophora and 1000 Dictyocaulus viviparus larvae. Calves of group 1 remained untreated, and all other calves were treated 21 days after...

Borgsteede, F. H. M.; Hendriks, J.
Veterinary Quarterly, 1986, 8, 2, pp 98-104