Which substance is primarily responsible for luteolysis in the non-pregnant cow?
Correct answer: A. Prostaglandin F2 alpha
- A. Prostaglandin F2 alpha
- B. Progesterone
- C. Oestradiol-17 beta
- D. Inhibin
Explanation
Prostaglandin F2 alpha released from the uterine endometrium causes regression of the corpus luteum in the non-pregnant cow. Progesterone supports the corpus luteum, while inhibin mainly reduces FSH secretion.
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About Theriogenology and Animal Reproduction
Covers the reproductive anatomy and physiology of male and female domestic animals, including puberty, oestrous cycles, ovulation, fertilisation, pregnancy, parturition and lactation. It also includes artificial insemination, semen evaluation, pregnancy diagnosis, infertility, dystocia and reproductive disorders, with attention to species differences.
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