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Prevalence of Actinobacillus seminis in the semen of rams in the United Kingdom
  1. JC Low,
  2. D Somerville,
  3. MJ Mylne and
  4. WA McKelvey


A survey was conducted to establish the prevalence of Actinobacillus seminis in ovine semen and the possible importance of the organism as a cause of ram infertility. A seminis was isolated from three of 16 infertile rams and the infected animals had lesions of the genital tract and produced poor quality semen. A seminis was also isolated from two of 96 fertile rams used as donors of semen for artificial insemination programmes. The strains of A seminis could be identified on the basis of their API ZYM profiles. The results suggest that in the United Kingdom A seminis should be considered as a common cause of infertility in rams.

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