Abstract
Indirect bacterial agglutination titers to Pasteurella haemolytica A1 were determined in serum, thoracic, pericardial, or peritoneal fluid from cattle necropsied as part of the Bruce County Beef Project in 1979-80 and 1980-81. Antibody titers were also assayed in serum from 84 calves on entry to feedlots in the fall of 1979. Titers on entry were low compared to antibody levels at necropsy. Cattle which died with pneumonia, in particular those dying of fibrinous pneumonia (shipping fever), had lower levels of antibody to P. haemolytica than did those dying of other causes.
MeSH Terms
Agglutination Tests/veterinary
Animals
Antibodies, Bacterial/analysis
Cattle
Cattle Diseases/immunology
Ontario
Pasteurella/immunology
Pasteurella Infections/immunology,veterinary
Pasteurellosis, Pneumonic/immunology
Pneumonia/immunology,veterinary
Chemicals
Antibodies, Bacterial
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Shewen P E
Wilkie B N
References (9)
9 references, click to expand
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