Understanding the Estrous Cycle in Cows

What is the major phases of estrous cycle?

• Follicular

• luteal

• follicular and luteal

The follicular phase subdivided into two phases ............ and ..................... .

• metestrus and Diestrus

• Proestrus and Metestrus

• Estrus

• Proestrus and estrus

What hormone helps a cow show signs that she is ready to mating?

• LH

• Estradiol.

• Progesterone

• FSH

CL started to secret ....................

• Estradiol

• Progesterone

• FSH

• PGF2a

What happens if a cow does not get pregnant by day 16?

• PGF2a secreted from endometrium

• Her body gets ready for next estrus

• Anestrus

• A and B