TY - JOUR
T1 - Epidemiology of Mycoplasma bovis in Pennsylvania veal calves
AU - Soehnlen, M. K.
AU - Aydin, A.
AU - Murthy, K. S.
AU - Lengerich, E. J.
AU - Hattel, A. L.
AU - Houser, B. A.
AU - Fenton, G. D.
AU - Lysczek, H. R.
AU - Burns, C. M.
AU - Townsend, A. M.
AU - Brooks, J. W.
AU - Wolfgang, D. R.
AU - Jayarao, B. M.
N1 - Funding Information:
This research was funded by the Pennsylvania Department of Agriculture Bureau of Animal Health and Diagnostic Services Grant ME-447632 (principal investigator: D. R. Wolfgang). The authors thank Wayne Marcho, owner of Marcho Farms Inc. (Harleysville, PA), for his continued support of research and improvements in the US veal industry. We are also grateful to the many veal raisers and processing facility employees of Marcho Farms Inc. and to Roberta Horner (PA Animal Diagnostic Laboratory, University Park) for their indispensable assistance throughout this work.
PY - 2012/1
Y1 - 2012/1
N2 - The objective of the study was to estimate the prevalence and incidence of Mycoplasma bovis, a common cause of pneumonia, in veal calves. Using simple random sampling, 252 calves from 4 veal herds located in central Pennsylvania were selected and longitudinally followed for monthly collection of nasal swabs. Bronchial swabs and lung lesions were collected at the slaughterhouse. Nasal, bronchial, and lung lesion swabs were cultured for bacterial respiratory pathogens. Ninety lung lesions were identified, of which 41.1, 1.1, 1.1, 7.8, and 4.4% were culture positive for M. bovis alone, Pasteurella multocida alone, Mannheimia haemolytica alone, M. bovis and P. multocida co-infection, and M. bovis and M. haemolytica co-infection, respectively. The data indicate that potential interventions, such as therapeutics, vaccines, or management control measures, would be most effective before 50 d of age based upon the cumulative incidence of colonization.
AB - The objective of the study was to estimate the prevalence and incidence of Mycoplasma bovis, a common cause of pneumonia, in veal calves. Using simple random sampling, 252 calves from 4 veal herds located in central Pennsylvania were selected and longitudinally followed for monthly collection of nasal swabs. Bronchial swabs and lung lesions were collected at the slaughterhouse. Nasal, bronchial, and lung lesion swabs were cultured for bacterial respiratory pathogens. Ninety lung lesions were identified, of which 41.1, 1.1, 1.1, 7.8, and 4.4% were culture positive for M. bovis alone, Pasteurella multocida alone, Mannheimia haemolytica alone, M. bovis and P. multocida co-infection, and M. bovis and M. haemolytica co-infection, respectively. The data indicate that potential interventions, such as therapeutics, vaccines, or management control measures, would be most effective before 50 d of age based upon the cumulative incidence of colonization.
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U2 - 10.3168/jds.2011-4309
DO - 10.3168/jds.2011-4309
M3 - Article
C2 - 22192204
AN - SCOPUS:84055199027
SN - 0022-0302
VL - 95
SP - 247
EP - 254
JO - Journal of dairy science
JF - Journal of dairy science
IS - 1
ER -
