Artificial Induction of Puberty

Question 1

___ (number) watt for an incandescent bulb (12x12ft)

Answer 1

200

Question 2

T/F Light manipulation can induce puberty and stimulate follicular activity in mares/fillies

Answer 2

True

Question 3

Start of light regimen
Southern hemisphere: ___ to ___
Northern hemisphere: ___ to ___

Answer 3

Southern hemisphere: July 1 to August
Northern hemisphere: December to (2 months before February which is the breeding season)

Question 4

Disadvantage of light stimulation

Answer 4

Additional facilities

Question 5

Solution to the disadvantage

Answer 5

Face mask

Question 6

Exposure to artificial light eliminates the vernal transition (aka puberty) in mares

Answer 6

False. Simply moves it earlier

Question 7

T/F Kisspeptin is also utilized in anestrous mares

Answer 7

True

Question 8

T/F Low doses of GnRH and Kisspeptin advances onset of breeding activity

Answer 8

True

Question 9

In cows, administration of GnRH should be followed by ______

Answer 9

Prostaglandin

Question 10

T/F Deslorelin induces GnRH, FSH, LH secretion but when administered in prolonged periods of time inhibits FSH and LH.

Answer 10

True

Question 11

eCG is produced in _____ ____

Answer 11

endometrial cups

Question 12

T/F Melatonin should not be used in immature sheep as it would cause delayed onset of puberty.

Answer 12

True

Question 13

What is the adverse effect of estrogen administration?

Answer 13

Impairment of blood production in bone marrow

Question 14

T/F Prolactin inhibitors decrease progesterone concentrations

Answer 14

True

Question 15

Prior to the administration of progesterone mares should be given a____ l______, and cows should be given _ _ _ _

Answer 15

adequate lighting; GnRH

Question 16

Deslorelin in bitches

Answer 16

GnRH