Abortion in sheep caused by a nonclassified, anaerobic, flagellated bacterium.

C. A. Kirkbride, C. E. Gates, J. E. Collins

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

Twenty-eight pregnant ewes were inoculated IV with approximately 6 X 10(8) nonclassified, anaerobic, flagellated bacteria (NAFB) that had been isolated from an aborted lamb. Abortion occurred in 3 of the ewes and 1 ewe gave birth to a weak lamb. The remaining 24 ewes and 3 other ewes inoculated orally with NAFB did not develop clinical signs of illness. Suppuration and vasculitis were seen in the placentas of the 3 aborted lambs, 1 of which had necropurulent hepatitis indistinguishable from that usually attributed to Campylobacter fetus infection. The NAFB was isolated from fetal placenta, abomasal content, or internal organs of 2 aborted lambs and the weak lamb. A morphologically similar organism was seen in the abomasal content of the other aborted lamb, but the organism did not grow on bacteriologic culture medium. Therefore, in susceptible pregnant ewes, NAFB can cause fetal placentitis and hepatitis and subsequent birth of weak lambs or abortion.

Original languageEnglish (US)
Pages (from-to)259-262
Number of pages4
JournalAmerican journal of veterinary research
Volume47
Issue number2
StatePublished - Feb 1 1986

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