VGO-0093
QUESTION
Species in which preovulatory luteinization of follicle occurs?
OPTIONS
(A) Bovine
(B) Caprine
(C) Feline
(D) Canine
ANSWER
(D) Canine
EXPLANATION
In the bitch, follicular luteinization begins before ovulation, causing progesterone concentrations to rise during the preovulatory period. This feature is useful in monitoring the canine fertile period. Cattle and goats do not show this characteristic clinically prominent preovulatory progesterone rise, while cats are primarily induced ovulators. The canine pattern is therefore distinctive among the listed species.
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Veterinary Gynaecology and Obstetrics · 240 Questions
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