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A field trial to evaluate the efficacy of a commercial Pasteurella haemolytica bacterial extract in preventing bovine respiratory disease
A double blind, random, controlled field trial was conducted to ascertain the efficacy of a Pasteurella haemolytica bacterial extract (Presponse, Langford Inc., Guelph, Ontario) in the prevention of bovine respiratory disease and/or its effects. Calves from 13 ranches (n = 1140 calves) were assigned...
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| Main Authors: | , , |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
1990
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1480819/ https://ncbi.nlm.nih.gov/pubmed/17423645 |
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