Puberty and Repro Cycles

Pick the sentence that uses the correct form of the word estrus/estrous.

The adult male hypothalamus:

Which of the following is most likely to hasten the onset of puberty in female pigs?

Which of the following phases/stages of the estrous cycle of farm animal species has the longest duration?

Which pattern of hormones induces estrus in the dog?

Which type of receptors in the brain are involved with promoting development of a male-type hypothalamus?

In the dog, follicular development and a bloody vaginal discharge occur during:

A species, such as the mare, that has repeated estrous cycles in the spring of the year, is categorized as:

In the sheep, which follicular hormone, when secreted at maximal concentrations, triggers an increase in the frequency and amplitude of GnRH pulses from the surge center in the hypothalamus?

Which of the following prevents estrogen from entering the brain of the fetus?

During the follicular phase of the pig, the dominant ovarian steroid is:

Non-fertile mating in the cat:

You are studying sexual differentiation of the hypothalamus in sheep. You are going to treat the pregnant dam (mother) with various hormones to see if any will alter hypothalamic differentiation. Which of the following hormones, if given to the dam at the appropriate stage of fetal development, is most likely to defeminize the hypothalamus of a female fetus?

During the luteal phase of the cow, the dominant ovarian steroid is:

During which stage of the dog estrous cycle does ovulation occur?

Which of the following changes is most likely to participate in the natural mechanisms that result in puberty?

Mating in the cat initiates a neural reflex that triggers:

Identify the correct chronological sequence for stages of the estrous cycle of farm animals.