VGO-0068
QUESTION
Post-service pyometra in cow is usually caused by?
OPTIONS
(A) E. coli
(B) Campylobacter fetus
(C) Trichomonas fetus
(D) Brucella abortus
ANSWER
(C) Trichomonas fetus
EXPLANATION
Tritrichomonas foetus is classically associated with post-service pyometra in cows after venereal infection, early conceptus loss, and persistence of luteal function. E. coli can cause uterine infection but is not the characteristic venereal association asked here. Campylobacter fetus more typically causes infertility and early embryonic death, while Brucella abortus is classically linked to later abortion and retained fetal membranes.
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Veterinary Gynaecology and Obstetrics · 240 Questions
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