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Etiology of respiratory disease in non-vaccinated, non-medicated calves in rearing herds
The aim of this study was to examine the occurrence of bacterial, mycoplasmal and viral pathogens in the lower respiratory tract of calves in all-in all-out calf-rearing units. According to clinical status, non-medicated calves with and without respiratory disease signs were selected of the 40 herds...
| Autores principales: | , , , , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Elsevier B.V.
2007
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7130506/ https://www.ncbi.nlm.nih.gov/pubmed/17084565 http://dx.doi.org/10.1016/j.vetmic.2006.10.001 |