Is Campylobacter fetus subspecies venerealis infection a cause of reproductive failure in dairy cows in Iran?

Bovine genital campylobacteriosis is one of the most economically important diseases of dairy cattleresulting in lowered fertility, embryo mortality and abortion, repeated returns to service, reduced pregnancyrates and extended calving intervals. While the occurrence of repeat breeding syndrome and abortions arereported from many Iranian dairy cattle farms, little information is available regarding the presence of bovinegenital campylobacteriosis in Iran. The present report describes detection of Campylobacter fetus subsp.venerealis infection in two out of eight repeat breeder Holstein Friesian cows (Bos Taurus) using a PCRmethod in a herd with a history of subfertility in Mashhad, in the northeast of Iran.