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Veterinary Pathology, Vol 20, Issue 5 584-589, Copyright © 1983 by American College of Veterinary Pathologists

ARTICLES

Effects of Hemophilus somnus on the pregnant bovine reproductive tract and conceptus following cervical infusion

R. B. Miller and D. A. Barnum

Three strains of Hemophilus somnus were infused into the posterior cervix of six pregnant cows. The organism persisted in the cervicovaginal region for eight to 87 days, and at parturition H. somnus was isolated from chorioallantois in four of six cows; placentitis developed, and fetal membranes were retained. All calves were born alive and no H. somnus was recovered from them. One cow died 14 days after parturition. The death was attributed to severe necrotizing metritis; H. somnus was not isolated from the uterus at death, but was isolated from the placenta at parturition and cervicovaginal mucus two days days later.




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Copyright © 1983 by the American College of Veterinary Pathologists.