Etiology of respiratory disease in non-vaccinated, non-medicated calves in rearing herds
| Autor: | Timo Soveri, Tarja Pohjanvirta, Sinikka Pelkonen, H. Rusanen, Liisa Sihvonen, A. Huovilainen, Tiina Autio, J. Pentikäinen, Ulla Rikula, R. Holopainen |
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| Rok vydání: | 2007 |
| Předmět: |
Pasteurella multocida
Microbiological culture Etiology Respiratory pathogens 040301 veterinary sciences Pasteurella Infections Cattle Diseases Bovine respiratory disease Biology medicine.disease_cause Bronchoalveolar Lavage Ureaplasma Microbiology Article Virus 0403 veterinary science 03 medical and health sciences Mycoplasma Species Specificity Pneumonia Mycoplasma medicine Animals Lung Mannheimia haemolytica Respiratory Tract Infections Pathogen Finland 030304 developmental biology 2. Zero hunger 0303 health sciences General Veterinary Ureaplasma Infections Respiratory disease 04 agricultural and veterinary sciences General Medicine biology.organism_classification medicine.disease Virology 3. Good health medicine.anatomical_structure Cattle Bronchoalveolar Lavage Fluid Respiratory tract |
| Zdroj: | Veterinary Microbiology |
| ISSN: | 0378-1135 |
| DOI: | 10.1016/j.vetmic.2006.10.001 |
| Popis: | 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 investigated to analyse the micro-organisms present in healthy and diseased calves. Tracheobronchial lavage (TBL) and paired serum samples were analysed for bacteria, mycoplasmas, respiratory syncytial virus (RSV), parainfluenza virus 3 (PIV3), bovine corona virus (BCV) and bovine adenovirus (BAV). Pasteurella multocida was the most common bacterial pathogen. It was isolated from 34% of the TBL samples in 28 herds and was associated with clinical respiratory disease (p |
| Databáze: | OpenAIRE |
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