Initial sites of localization and multiplication of Pasteurellamultocida were examined in chickens intravenously inoculated with varying doses of bacteria. Sections of lung, liver, kidney, bone marrow and spleen were prepared for light microscopic examination.Tissue sections were stained with the hematoxylin and eosin stain,Gram's stain or the avidin-biotin-peroxidase complex immunoenzymatictechnique. Of...
The efficacy of the morantel sustained release bolus (MSRB) in reducing gastrointestinal parasitism in first season grazing calves was evaluated during the summer-fall grazing seasons of 1982 and 1983 in western Oregon. Thirty-eight calves (1982) and 40 calves (1983) were randomly assigned to a control and treatment group each season....
Protective antigens were separated from a 2.5% saline extract of
Pasteurella multocida type 4 by chromatographic methods. The organism
was grown for 18 to 20 hours at 37°C on an agar medium containing 5%
heat-inactivated turkey serum. The bacterial growth was harvested in a
2.5% NaC1 solution and agitated for...