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Large animal > Repro exam 3 Hemming > Flashcards

Repro exam 3 Hemming Flashcards

1
Q

How early can you ultra song pregnancy in mares

A

11 days

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2
Q

minimum numbers of days that should pass to avoid embyro fixation in a mare

A

15 days

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3
Q

minimum number of days that should pass before ultrasound prey check in cattle

A

25

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4
Q

when can you know the sex of the fetus

A

60 days

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5
Q

what is the structure that determine sex in the fetas

A

genital tubercule

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6
Q

Endometrial biopsy is done on

A

mares

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7
Q

what allows animal to express estrus and ovulate while causing progesterone production to decrease due to regression of CL

A

prostaglandin F2 alpha

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8
Q

what percentage of cows will you see in heat after PT2a is administered

A

70-80%

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9
Q

How long should you wait for the mare to go out of heat before giving prostaglandin to prevent pregnancy

A

5-8 days after the end of estrus

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10
Q

which hormone suppress estrus

A

progesterone

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11
Q

Which hormone will start a follicular cycle?

A

GNRH

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12
Q

What produces inhibin

A

the dominant follicale

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13
Q

inhibit suppresses what

A

FSH

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14
Q

What range of days are embryo collected

A

6-8 days

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15
Q

What causes destruction of the corpus leuteum

A

PGF2A

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16
Q

what causes artificial ovulation in cattle

A

GNRH

17
Q

what causes artificial ovulation in horses

A

HCG

18
Q

when taken of regimate, how long until go into heat

A

3-5 days

19
Q

species that has follicular cycle

A

cows

20
Q

what prevents GnRH

A

high progesterone

21
Q

traits to look for in semen

A

volume, motility and concentration

22
Q

want to breed how long after the start of estrus

A

12 hours

23
Q

ovulation happens how many hours after LH surge

A

36hrs

24
Q

extender for semen made out of (4)

A

non-fat dry milk, dextrose, antibiotics and antifungals, sodium bicarb

25
Q

what will kill semen

A

rubber plunger

26
Q

what are good cryroprotectants

A

glyceride and ethylene glycol

27
Q

surge of what hormone before ovulation

A

LH

Large animal (7 decks)

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