Cyclicity

What is on the ovary during the follicular phase?

follicles

What is on the ovary during the luteal phase?

CL

What is the percentage of the follicular phase in comparison to the entire cycle?

20%

What are reasons for anestrus?

pregnancy, lactation, season, stress, disease, body condition

What does polyestrus mean?

uniform distribution of estrous cycles throughout the year

What does seasonally polyestrus mean?

clusters of estrous cycles during certain times of year

What does monoestrus mean?

only 1 cycle per year

What happens during proestrus?

formation of ovulatory follicles and E2 secretion

What happens during estrus?

sexual receptivity, lordosis, ends with ovulation

What happens during metestrus?

transition from estradiol dominance to progesterone dominance

What happens during diestrus?

period of maximum luteal function, ends with luteolysis

Which estrous phase does the bitch not have?

metestrus

What is superfecundation?

ovulation and fertilization are uncoupled, so a bitch can have multiple oocytes fertilized by spermatozoa from different males

What is pseudopregnancy?

bitch thinks she is pregnant because diestrus is the same length as pregnancy

When do ovulation and fertilization occur during estrus in the bitch?

ovulation after 3 days, fertilization after 6 days

What is postestrus

inter-estrus period after estrus but before copulation, only occurs in queens

Queen is what kind of ovulator?

induced --> copulation initiates LH surge

Which species has complete lactational anestrus?

sow

Which species has no lactational anestrus?

queen, dairy cow

What is the length of gestation in both the bitch and queen?

63 days