03 - breeding mgmt

Question 1

(mgmt of mare)

1. give what in diestrus to bring mare into heat?
2. give what in estrus to make mare ovulate?
3. give what post breeding to make mares dump out excess uterine fluid?

Answer 1

1. Prostaglandin F
2. hCG
3. oxytocin

Question 2

(pregnancy)

1. US when to detect twins?

Answer 2

1. 13-15 days after ovulation

(twin reduction can work and done early - after day 16 embryo adheres and twin reduciton difficult)

Question 3

(fetal viability)

1. fetal heart rate by US seen when?

Answer 3

1. 23-28 days

Question 4

(nutritional needs)

1. increase in thrid timester
2. when are they highest?

Answer 4

2. lactation

Question 5

(sings of foaling)

1. slackening of pelvic ligaments and vulva
2. see white colostrum (waxing) at end of teats when?
3. milk electrolyte changes - increase in what?

Answer 5

2. 48 hours before
3. calcium

Question 6

(normal foaling process)

(stage 1)

1. mare restless and colicky for about 2 hours

(stage 2)

1. rupture of what?
2. white membrane (called what?) appears at vulval lips?
3. foal is expelled - wrapped in what?

(stage 3)

4. placenta should be passed within what time?

Answer 6

1. allantoic fluid
2. amnion
3. amnion
4. 3 hours (if > 6 -> emergency)

Question 7

(care of new foal)

1. time to suck?
2. administer tetanus anti-toxin if what?
3. check specific gravity of colostrum - shoud be above what?

Answer 7

1. 2-20 min (if > 2 hours call vet)
2. mare didn’t have booster in last trimester
3. 1.060