Experimentelle Untersuchungen zur Wirksa
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D. DΓΌwel; R. Kirsch
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Article
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1975
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Springer-Verlag
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English
β 497 KB
Helminth-free bulls were infected artificially with Ostertagia ostertagi (120000 L 3), Cooperia on~ophora (240000 L 3), Haemonchus spee. (1000L 3), and/of Di~tyocaulus viviparus (60 L 3/kg) orally or intraruminally. The animals were treated with fenbendazole during the prepatent period or after havi