kumari - endocrinology of pregnancy

Question 1

duration of gestation: cat

Answer 1

~60 d

Question 2

duration of gestation: dog

Answer 2

~60 d

Question 3

duration of gestation: cow

Answer 3

277-290 d

Question 4

duration of gestation: pig

Answer 4

112-115 d

Question 5

duration of gestation: sheep

Answer 5

144-152 d

Question 6

duration of gestation: horse

Answer 6

340-345 d

Question 7

what is a source of eCG in the mare?

Answer 7

endometrial cups

Question 8

estrogen levels in the urine can be an indicator of what?

Answer 8

• litter size in pigs

- fetus size in cattle

Question 9

estrogen is produced where during gestation?

Answer 9

the placenta

Question 10

what two hormones are essential for development of the mammary gland?

Answer 10

• estrogen

- progesterone

Question 11

what is the main role of progesterone?

Answer 11

• progesterone block: high progesterone levels inhibit uterine contractions by blocking oxytocin and prostaglandin

Question 12

what are the 5 hormones produced by the placenta?

Answer 12

1. ovine placental lactogen (somatomammotropin)
2. bovine placental lactogens
3. prolactin
4. relaxin
5. equine chorionic gonadotropin