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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

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
hormone if we want animals to ovulate
GnRH
26
Hormone if we want to kill CL
PGF2a
27
Hormone if we want animal to stop cycling
Progesterone
28
What does low progesterone indicate
A heat cycle
29
What does high progesterone indicate
A CL
30
How to test for pregnancy in animals
ELISA assay to detect progesterone levels
31
What does high estrogen indicate
They are during heat or estrus
32
HHH
Pregnant
33
LLL-
Anestrus
34
LHH-
Ovulated 14 days ago
35
LLH
Ovulated 7 days ago
36
LML
Subfunctional CL
37
LH function
Causes ovulation and maintains CL
38
FSH function
Stimulates follicular growth
39
E2 function
Standing estrus, triggers release of GnRH when P4 low
40
P4 function
Maintains pregnancy and inhibits ovulation
41
PGF2a function
Regresses CL
42
Day 1 of NC Synch protocol
PGF2a
43
Day 8 of NC Synch protocol
GnRH
44
Day 15 of NC Synch protocol
PGF2a
45
Day 18 of NC Synch protocol
GnRH and AI
46
Signs of estrus
Interest in buck, vocal, red vulva, mucus, raised tail
47
3 methods of estrus detection
Pasture teasing, pen teasing, individual mare teasing
48
0-2 of estrus scale
Not in heat
49
3-4 of estrus scale
Are in heat
50
Regumate
Progesterone; helps with a transition period from winter anestrus to breeding seasons in mares
51
Lutalyse, Estrumate
Prostagladins; causes regression of CL, stimulate uterine contractions
52
Sucromate
Inhibit ovulation
53
Factrel
Inhibit ovulation

ANS 221 (3 decks)

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