Pregnancy/Parturition

Question 1

what induces parturition

Answer 1

fetal adrenal gland releases cortisol when it gets to big/crowded

Question 2

what hormones increase during parturition

Answer 2

estrogen
prostaglandin
oxytocin

Question 3

what hormones decrease during parturition

Answer 3

progesterone

Question 4

what hormone helps pelvic stretch

Answer 4

relaxin

Question 5

rice pelvic meter

Answer 5

measure of pelvic opening to see if its big enough to bear calves

Question 6

what effects birth weight of most animals

Answer 6

BW of sire

Question 7

what effects birthweight of sheep and goats

Answer 7

nutrition/feeding levels

Question 8

when does 70% of sheep fetal growth happen

Answer 8

last 50 days of pregnancy(Third trimester)

Question 9

cattle estrus duration

Answer 9

12 hours

Question 10

sheep estrus duration

Answer 10

24-36 hours

Question 11

swine estrus duration

Answer 11

48-54 hours

Question 12

horse estrus duration

Answer 12

6 days

Question 13

cattle ovulation time

Answer 13

10-18 after estrus start

Question 14

sheep ovulation time

Answer 14

18-24 after estrus start

Question 15

swine ovulation time

Answer 15

30-36 hours after estrus start

Question 16

horse ovulation time

Answer 16

2 days after estrus start

Question 17

cattle time between estrus

Answer 17

21 days

Question 18

sheep time between estrus

Answer 18

17 days

Question 19

swine time between estrus

Answer 19

21 days

Question 20

horse time between estrus

Answer 20

21 days

Question 21

which animal has the shortest estrus duration

Answer 21

cattle

Question 22

which animal has the longest estrus duration

Answer 22

horse