Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Antibody response to Mycoplasma bovis of calves introduced in a farm contaminated with the organism.

Abstract

Antibody against M. bovis was detected in sera of 48 calves introduced to a farm with a 3-year history of calf pneumonia associated with M. bovis, by an indirect haemagglutination test. Significant increases in antibody titre were detected in sera of groups of 16 and 14 calves by day 60 after introduction. A significant increase of antibody titres in 18 calves which had been given antibiotics as a preventive therapy, was detected on day 248 after arrival. These results indicated a rapid spread of M. bovis infection on the contaminated farm, and that preventive therapy delayed the outbreak of calf pneumonia associated with M. bovis.