Bovine trichomoniasis can be costly for beef cattle operations that use natural service. The disease can be found worldwide. It causes extended breeding seasons and diminished calf crops. Infection can be costly to treat, and its prevention is critical to the health of your breeding animals.
Trichomoniasis (often called “trich”) is a true venereal disease caused by a protozoan organism called Tritrichomonas foetus. It is spread through sexual contact. Adding infected bulls or cows into your herd is the most common source of introduction. Exposure to the neighbor’s bulls through a fence break or common grazing can also be a source of infection.
Source : msstate.edu