Trichomoniasis is a venereal disease of cattle which can cause infertility through early embryonic death and abortion. The disease is caused by a protozoan parasite Tritrichomonas foetus. The disease is uncommon in NSW and other states of southern Australia.

After infection a discharge usually occurs more commonly than with other venereal diseases such as Bovine Campylobacteriosis. In recently infected herds 5-30 per cent of cows can show clinical signs such as endometritis, vaginitis, cervicitis associated with mucopurulent discharge. In 5-10 per cent of cases pyometron may develop.

Infected bulls are considered to be permanent carriers therefore they are important to test to recover the organism.  After two weeks of sexual rest is the best time to sample bulls. Testing for both Trichomoniasis and Bovine Campylobacteriosis is usually done on the same sample, collected from the prepuce of the bull (see link below).

Diagnosis and tests available


Diagnosis is supported by clinical history and confirmed by culture.

Tests available


Sample(s) required

Days of the week test is conducted

Turnaround time1

Trichomonas culture

Preputial scrapings

Monday – Friday

4 days

Trichomonas PCR2

PCR performed from culture

As required

3 days

1 Turnaround times are provided as a guide only. For specific information about your submission please contact Customer Service.
2 This test is not NATA accredited.

Specimen requirements

Preputial scrapings

  • Collected from the prepuce of the bull
    • Collected samples should be stored and forwarded to the laboratory at room temperature (18-37oC). Do not submit chilled as organisms are sensitive to the cold.
    • Media for sample collection can be provided by the laboratory