These animals may shed the lepto in their urine for s everal weeks following clinical disease. Diagnosis is usually based on blood titers, however, it as with other serological diagnosis, it may be difficult to make the interpretation. Control of infections relies on vaccinations prior to breeding with multivalent vaccines. Trichomoniasis Trich is a venereal disease caused by a protozoon, which is seen in natural service dairy herds. It is transmitted during breeding from infected bulls to susceptible cows.
Older bulls are more likely to be infected and remain infected than virgin or y oung bulls.
Infections may result in early embryonic deaths or abortion during the first 5 months of pregnancy. There are no systemic signs of infections. Diagnosis is made by examination of preputial washing from the sheath of infected bulls using special isolation media. Cervical mucus or pyometrial fluid from cows can also be checked for infectious organisms. Control of trich within known infected he rd is to begin artificial insemination.