Testing for trichomoniasis in bulls usually takes place earlier in the spring, but the consequences of trich-positive bulls is lasting. Though producers seem to be doing a better job identifying trich-positive bulls, in 2012 there have been several cases reported in different states.
Bruce Brodersen, DVM, PhD, University of Nebraska Veterinary Diagnostic Center, says the last two years records have shown that peak trich testing months are March through May, with the least testing from July through September.
“There were specimens from one or two herds which were positive in each of those three busy months in 2011 compared to zero in March and April 2012,” Brodersen says. “There was one positive herd in May 2012 from which we received specimens.”
Brodersen says it’s still important to trich test. “The disease is out there. As an example, Iowa just reported in June that two farms had bulls which tested positive. Anecdotally, we have seen cases of positive herds where pregnancy rates were as low as 60% compared to the general goal of 95% in an excellent herd.”
The Nebraska Veterinary Medical Association has an informational poster on trichomoniasis you can download and share with your producers here.
Read about taking better trich samples from Bovine Veterinarian here.