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Pathology of acute experimental Actinobacillus seminis mastitis in ewes
Author(s) -
ALSENOSY A.M.,
DENNIS S. M.
Publication year - 1985
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1985.tb07320.x
Subject(s) - udder , mastitis , pathological , inoculation , pathology , biology , medicine , veterinary medicine
SUMMARY Sequential pathological changes were studied for 9 days after inoculating Actinobacillus seminis in the mammary gland of sheep. The inoculated mammary glands became enlarged (2 to 4 times normal), turgid or consolidated and contained creamy or greenish‐yellow viscid contents. A. seminis was isolated from all inoculated udders at necropsy. Microscopically, the reaction in the udder to A. seminis may be divided into 4 overlapping phases; acute purulent, subacute purulent, necrotising, and proliferative. It was concluded that A. serninis was pathogenic for the ovine mammary gland, the clinical and pathological findings were nonspecific, and that A. seminis could survive within ovine mammary tissue for a least 9 days after inoculation.