Bovine trichomoniasis can be a nasty disease. The sexually transmitted illness can spread through a herd, resulting in abortions and infertility, and many states track cases to help prevent spread of the disease. The Colorado Department of Agriculture recently reported that the state is seeing a steady decline in the number of "trich" cases.

Dr. Keith Roehr, state veterinarian, commented: "Ranchers who commingle their herds have a state requirement to test their bulls for trichomoniasis, because there is a higher risk of transferring the disease. Testing and monitoring herds for 'trich' is the best method of controlling this infection. Cattle owners should talk to their veterinarian to determine the best management practices for their herd."

Only three counties showed reported cases of bovine trichomoniasis in the latest Colorado report. This table offers a look back on disease incidence. (Source: Colorado Department of Agriculture)

The disease can be a costly problem, yet it's preventable. The infection can impact dairy and beef cattle; and if bulls become infected, the percentage of open cows can increase from 5% to 30%. Trich is a venereal disease of cattle caused by Trichomonas foetus. The infection causes fertility problems, such as early embryonic death or abortion of the calf, and is asymptomatic in bulls.

Colorado trich regulations require that all bulls changing ownership or being transported into the state be tested for T. foetus unless the animal is going to slaughter. Bulls on public land grazing permits or with grazing associations must also be tested before being turned out.

There are a range of diagnostic labs across the state offering trich testing; samples must be collected by an accredited veterinarian, and results are typically available in four to six days. Get more information about the disease and testing locations at bit.ly/2lsGWgK.

Source: Colorado Department of Agriculture