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ANS 221 > Exam 1 > Flashcards

Exam 1 Flashcards

1
Q

Which follicle is present at birth

A

Primordial follicle

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2
Q

Which follicle contains a primary oocyte that is surrounded by a thin layer of flattened granulosa cells

A

Primordial follicle

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3
Q

Which follicle develops after puberty

A

Primary follicle

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4
Q

Which follicle’s oocyte is surrounded by cubodial granulosa cells

A

Primary follicle

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5
Q

Which follicle has formation of thecal and granulosa cells

A

Secondary follicle

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6
Q

Which follicle contains several layers of follicular cells

A

Secondary follicle

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7
Q

Which follicle is surrounded by several layers of follicular cells

A

Tertiary follicle

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8
Q

Which follicle contains granulosa and thecal cells

A

Tertiary follicle

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9
Q

Which follicle first shows an antrum

A

Tertiary follicle

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10
Q

Which follicle has a large antrum

A

Graafian follicle

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11
Q

Which follicle contains a secondary oocyte

A

Graafian follicle

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12
Q

Which follicle undergoes ovulation

A

Cumulus oocyte complex

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13
Q

Which follicle’s oocyte is surrounded by cumulus cells

A

Cumulus oocyte complex

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14
Q

Which follicle produces progesterone

A

Corpus luteum

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15
Q

Function of corpus luteum

A

Establishing and maintaining pregnancy

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16
Q

Which follicle is the regressed form of CL

A

Corpus albicans

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17
Q

Which follicle is scar tissue

A

Corpus albicans

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18
Q

When are boars first housed

A

Before puberty

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19
Q

Why do boars get housed separately when older

A

Due to aggression

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20
Q

What age do boars reach puberty

A

5 mo

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21
Q

When are boars trained on puberty

A

6 mo

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22
Q

When are boar’s sperm used for breeding

A

8 mo

23
Q

Items needed for collecting boar sperm

A

Collecting cup, vinyl gloves, gauze

24
Q

Why can’t use you AV for boars

A

They require pressure and temperature to ejaculate

25
Q

hormone if we want animals to ovulate

A

GnRH

26
Q

Hormone if we want to kill CL

A

PGF2a

27
Q

Hormone if we want animal to stop cycling

A

Progesterone

28
Q

What does low progesterone indicate

A

A heat cycle

29
Q

What does high progesterone indicate

A

A CL

30
Q

How to test for pregnancy in animals

A

ELISA assay to detect progesterone levels

31
Q

What does high estrogen indicate

A

They are during heat or estrus

32
Q

HHH

A

Pregnant

33
Q

LLL-

A

Anestrus

34
Q

LHH-

A

Ovulated 14 days ago

35
Q

LLH

A

Ovulated 7 days ago

36
Q

LML

A

Subfunctional CL

37
Q

LH function

A

Causes ovulation and maintains CL

38
Q

FSH function

A

Stimulates follicular growth

39
Q

E2 function

A

Standing estrus, triggers release of GnRH when P4 low

40
Q

P4 function

A

Maintains pregnancy and inhibits ovulation

41
Q

PGF2a function

A

Regresses CL

42
Q

Day 1 of NC Synch protocol

A

PGF2a

43
Q

Day 8 of NC Synch protocol

A

GnRH

44
Q

Day 15 of NC Synch protocol

A

PGF2a

45
Q

Day 18 of NC Synch protocol

A

GnRH and AI

46
Q

Signs of estrus

A

Interest in buck, vocal, red vulva, mucus, raised tail

47
Q

3 methods of estrus detection

A

Pasture teasing, pen teasing, individual mare teasing

48
Q

0-2 of estrus scale

A

Not in heat

49
Q

3-4 of estrus scale

A

Are in heat

50
Q

Regumate

A

Progesterone; helps with a transition period from winter anestrus to breeding seasons in mares

51
Q

Lutalyse, Estrumate

A

Prostagladins; causes regression of CL, stimulate uterine contractions

52
Q

Sucromate

A

Inhibit ovulation

53
Q

Factrel

A

Inhibit ovulation

ANS 221 (3 decks)

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