The role of Mycoplasma bovis in bovine respiratory disease outbreaks in veal calf feedlots

To assess the prevalence and relative importance of Mycoplasma bovis among the pathological agents implicated in bovine respiratory disease (BRD), we surveyed 135 veal calves from nine feedlots in eastern France during naturally occurring outbreaks of respiratory disease. Occurrence of respiratory p...

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Bibliographic Details
Published in:The veterinary journal (1997) 2008-07, Vol.177 (1), p.89-93
Main Authors: Arcangioli, Marie-Anne, Duet, Arnaud, Meyer, Gilles, Dernburg, Ann, Bézille, Pierre, Poumarat, François, Le Grand, Dominique
Format: Article
Language:English
Subjects:
Animal biology
Animals
Animals, Newborn
Bacteriology
Bovine parainfluenza virus 3
Bovine respiratory disease
Bovine Respiratory Disease Complex
Bovine Respiratory Disease Complex - epidemiology
Bovine Respiratory Disease Complex - microbiology
Bovine Respiratory Disease Complex - virology
Bovine respiratory syncytial virus
bovine tuberculosis
Bovine viral diarrhea virus
Calf feedlot
Cattle
Cattle Diseases
Cattle Diseases - epidemiology
Cattle Diseases - microbiology
Cattle Diseases - virology
disease detection
Disease Outbreaks
Disease Outbreaks - veterinary
disease prevalence
disease surveillance
epidemiological studies
etiology
feedlots
France
Life Sciences
Microbiology and Parasitology
Mycoplasma bovis
Mycoplasma bovis - pathogenicity
Mycoplasma Infections
Mycoplasma Infections - epidemiology
Mycoplasma Infections - microbiology
Mycoplasma Infections - veterinary
Mycoplasma Infections - virology
pathogen identification
Prevalence
risk assessment
seroconversion
veal calves
Veterinary medicine and animal Health
viral diseases of animals and humans
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Summary:To assess the prevalence and relative importance of Mycoplasma bovis among the pathological agents implicated in bovine respiratory disease (BRD), we surveyed 135 veal calves from nine feedlots in eastern France during naturally occurring outbreaks of respiratory disease. Occurrence of respiratory pathogens, M. bovis, bovine viral diarrhoea (BVD) virus, bovine respiratory syncytial (BRS) virus and parainfluenza-3 (PI3) virus was investigated by seroconversion and isolation of bacteria and viruses from broncho-alveolar fluids. M. bovis and pathogenic respiratory bacteria were isolated in eight of the nine feedlots, and from 106 and 32, respectively, of the 135 tested animals. Seroconversion to PI3 virus occurred in four lots. BVD and BRS viruses were detected in eight and one lot, respectively. M. bovis was the most frequently isolated aetiologic agent in these BRD outbreaks, spreading early and widely throughout the affected units (60–100% rate of isolation and seroconversion). These results stress the importance of M. bovis in the BRD complex.
ISSN:1090-0233
1532-2971
DOI:10.1016/j.tvjl.2007.03.008