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RUSVM Theriogenology 2017 > Canine Repro > Flashcards

Flashcards in Canine Repro Deck (181)
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1

Cutaneous bridge

the area between the vulva and anus used to stimulate to assess stage of estrous

2

Puberty

ability of the hypothalamic neurons to produce sufficient GnRH

3

What is the average time for proestrus?

9 days

4

What is the average time for estrus?

9 days

5

What is the average time for diestrus?

2 months

6

What is the average time for anestrus?

5 months

7

What is the minimum days required for uterine involution in canine?

90 days

8

Interestrus period

time from the beginning of one estrus to the beginning of the next estrus

9

What is the minimum interestrus period cycle length in canine?

4 months

10

Describe the normal vaginal cytology during anestrus of the canine?

2-4 cell layers thick

11

Describe the vaginal cytology during proestrus in the canine?

greater than 20-40 cell layers thick

12

Why does the vagina grow 20-40 cell layers thick during proestrus?

Protect vagina against trauma
Prevent bacterial entry
Allow classification of stage of estrous

13

What should you avoid during vaginal cytology?

Avoid clitoral fossa, clitoris, and urethral orifice

14

Describe the physical changes during Proestrus?

Turgid swelling of vulva
hemorrhagic vulvar discharge

15

What is the response of the female dog during early proestrus?

Growling
Aggression
snapping

16

What is the response of the female dog during late proestrus?

sits down when dog attempts to mount
tucks tail

17

Describe the cells on the vaginal cytology during proestrus?

Cornified epithelial cells - "corn flakes"
Large angular cells with small/ no nuclei

18

Describe Physical changes during estrus

softening of vulvar swelling
scant blood discharge

19

Crenulation

max shrinkage of mucosa of the vagina

20

Describe the hormones during estrus in canine?

Progesterone rising
Estrogen falling
LH and FSH peaks

21

Describe cells during Estrus in the canine?

anuclear squames
no WBC's
Cells may clump - "clumping"

22

What causes the preovulatory rise in Progesterone?

follicular estrual luteinization

23

What stimulates the presence of neutrophils in the vagina?

Presence of sperm

24

In what stage is the primary oocyte in the bitch ovulated at?

Prophase 1

25

How long does it take for the oocyte to go through meiosis before it can be fertilized?

2-3 days

26

How long is the seondary oocyte viable for in the canine?

3-4 days

27

When do you breed naturally in the canine?

48-72 hours after 5ng/ml of Progesterone

28

When do you breed with shipped semen in the canine?

72-96 hours after 5ng/ml of Progesterone

29

When do you breed with frozen semen in the canine?

at least 96 hours 5ng/ml of Progesterone

30

When are canine oocytes fertilized post ovulation?

108 hours