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Trichomoniasis in Cattle: Reproductive Welfare

Bovine trichomoniasis is a sexually transmitted protozoan causing reproductive failure in cattle. This guide covers welfare impacts and control.

Key Facts

Trichomoniasis is caused by Tritrichomonas foetus protozoan
Bulls are asymptomatic permanent carriers; cows typically clear infection after several months
Infected cows experience early embryonic death and return to service
Pyometra (uterine infection) is a serious welfare complication in some cows
The disease spreads only at natural service — AI eliminates transmission risk
Testing of bulls before use identifies carriers before they infect the herd

Welfare Considerations and Management

Welfare-centred trichomoniasis management focuses on identifying carrier bulls and preventing spread. AI programmes eliminate natural service transmission. In natural service herds, bull testing before use prevents introduction. Infected cows typically self-cure after rest from service; those with pyometra require veterinary treatment (prostaglandins to clear the uterus). Culling carrier bulls from breeding herds is the most effective control in natural service situations.

What You Can Do

Use AI programmes to eliminate trichomoniasis transmission risk
Test bulls for trichomoniasis before introducing them to cow herds at natural service
Treat cows with pyometra promptly under veterinary guidance
Quarantine and test any purchased bulls before allowing access to cows