Bovine genital campylobacteriosis
Campylobacter fetus subsp. venerealis
The pathogen occurs worldwide in cattle. The reservoir is the preputial mucosa of clinically healthy bulls. Campylobacter fetus subsp. venerealis can cause fertility problems in cattle with failure to conceive or implant, early embryonic death or abortion.
Antibiotic treatment does not guarantee freedom from the pathogen. In valuable bulls, the pathogen can also be controlled with inactivated vaccines. In contaminated semen, the parasite is not reliably killed by either deep freezing or antibiotic addition.
The preputial fluid of insemination bulls is examined culturally-bacteriologically. Due to the sensitivity of the pathogens, the samples shall be transported to the laboratory within 6 hours in a special transport medium. In addition, the samples are also examined microscopically and culturally for trichomonads.
Differentially, Campylobacter fetus subsp. fetus and other Campylobacter species are to be excluded.
Pathogen identification is performed microscopically, based on growth behavior and antibiotic sensitivity, as well as by biochemical methods and PCR.
Last updated: 10.10.2023