Estrus Cycle

Question 1

define estrous cycle

Answer 1

a series of events occurring from the onset of one estrus to the onset of the next estrus

Question 2

what are the 3 steps to the esturs cycle

Answer 2

1- endocrine events
pattern of hormone release
relationship between hormones
2- physiological events
secretion of histotrophic
regression of the corpus luteum
3- behavioral

Question 3

what are 4 examples of females unlikely to cycle

Answer 3

1- pre pubertal
2- gestational
3- post partum
3- seasonal anestrus

Question 4

what are the 4 distinct phases of the bovine estrus cycle

Answer 4

1- Estrus
graafian follicles on ovary, estrogen being produced and period of sexual receptivity
2- metestrus
surge of LH is produced , ovulation occurs and a CH develops on the ovary
3- Diestrus
Mature CL on ovary and progesterone is being produced at high levels
4- Proestrus
CL is regressing in response to PGF2alpha and follicular development is initiated once again

Question 5

memorize this

Answer 5

Question 6

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Question 7

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