THE PULMONARY CLEARANCE OF PASTEURELLA-HAEMOLYTICA IN CALVES INFECTED WITH BOVINE VIRUS DIARRHEA OR MYCOPLASMA-BOVIS

  • 1 January 1982
    • journal article
    • research article
    • Vol. 46  (3) , 302-306
Abstract
Based on current literature which commonly associates bovine virus diarrhea virus and M. bovis with pneumonic pasteurellosis, an investigation was conducted into the effect of these 2 pathogens on the capacity of bovine lung to clear inhaled P. haemolytica. There was no significant effect (P > 0.05) of either bovine virus diarrhea virus or M. bovis on the mean clearance rate of P. haemolytica, nor did the time interval of 3, 5 or 7 days between the 1st inoculation and exposure to P. haemolytica adversely affect the lung clearance rates. However, it was found that the left lungs had a higher bacterial retention (P < 0.05) than the right lungs.