Association of Pasteurella haemolytica, Pasteurella multocida and Haemophilus somnus with pneumonia in calves
Haziroglu, R.; Erdeger, J.; Gulbahar, M.Y.; Kul, O.
Deutsche Tierärztliche Wochenschrift 104(4): 150-153
1997
ISSN/ISBN: 0341-6593 PMID: 9151475 Document Number: 474571
Pathological and bacteriological observations were made on 100 (0.98%) pneumonic lungs of 10140 slaughtered beef calves during March 1995-June 7 996 period. Gross lesions were mainly lobular and occasionally lobar pattern and, were frequently observed in the pars cranialis of lobus cranialis dexter. In histological examination, proliferative-exudative pneumonia was observed in 79 cases, and proliferative pneumonia alone in 21 cases. In bacteriological examination, Pasteurella haemolytica, Pasteurella multocida and Haemophilus somnus were isolated from 42, 8 and 10 of pneumonic lungs respectively. In 7 cases, P. haemolytica and H. somnus were isolated from the same sample. P. haemolytica and P. multocida were also found in the same sample in 2 cases. There was a close relation among these organisms and exudative inflammation (P lt 0.01).