ANS 150 (Physiology of Reproduction in Farm animals)

Front

Most consistent sign of estrus in mare?

Back

Both tail raising and winking of the vulva are the most consistent signs of estrus in mares.

Front

What is the gestation period in mares?

Back

The gestation period in mares is approximately 340 days.

Front

What is the duration of estrus in carabao?

Back

The duration of estrus in carabao ranges from 5 to 36 hours.

Front

Which hormone inhibits the production of FSH?

Back

Progesterone inhibits the production of Follicle Stimulating Hormone (FSH).

Front

What is the longevity of gametes in horses?

Back

The ovum lasts for 6-8 hours, while sperm cells can survive for 72-120 hours.

Front

Define estrus in farm animals.

Back

Estrus is the period of sexual receptivity in female mammals, characterized by behavioral and physiological changes.

Front

What role does estrogen play in reproduction?

Back

Estrogen is responsible for the development of secondary sexual characteristics and the regulation of the estrous cycle.

Front

What is the function of LH in reproduction?

Back

Luteinizing Hormone (LH) triggers ovulation and the development of the corpus luteum.

Front

Explain the significance of progesterone in pregnancy.

Back

Progesterone maintains pregnancy by inhibiting uterine contractions and supporting the endometrium.

Front

What are the signs of estrus in cattle?

Back

Signs of estrus in cattle include increased vocalization, restlessness, and mounting behavior.