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541 (sex class) > Pocket Pets > Flashcards

Pocket Pets Flashcards

1
Q

when is sexual maturity in rabbits?

A

small breeds: 3.5-4mo
med-large: 4-4.5mo
giant: 6-9mo

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2
Q

when are rabbits most sexually active?

A

during long photoperiods

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3
Q

what is the length of the rabbit repro cycle?

A

receptive 7-10d
quiescent 1-2d

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4
Q

rabbits are ______ ovulators.

A

induced

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5
Q

can you leave a male and female rabbit together after sexy times?

A

no.

female taken to male for mating; if receptive, they mate 2x in 30 mins and then should be separated

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6
Q

how long is rabbit gestation?

A

31-33d
(longer with <4 kits)

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7
Q

how do you dx rabbit pregnancy?

A

abdominal palpation (early as 12d)

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8
Q

if you find a baby rabbit (=kit) outside of the nest, should you put it back?

A

yes. mom won’t go get the baby

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9
Q

when should you wean rabbits?

A

4-6 weeks

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10
Q

when can a rabbit doe become pregnant after kindling (=rabbit birth)?

A

24h

don’t rebreed for 5-6 weeks, and max 3 litters per year

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11
Q

what disease commonly happens in female rabbits >4 yo?

A

uterine adenocarcinoma

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12
Q

how do you prevent uterine adenocarcinomas in rabbits?

A

OHE at 4-6mo or exams every 6mo

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13
Q

are mets likely to happen with uterine adenocarcinomas in rabbits?

A

yep
develops slowly, but mets can occur in 1-2 years

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14
Q

what are the C/S of uterine adenocarcinoma in rabbits?

A
  • reduced breeding productivity + fertility
  • hematuria
  • serosanguinous vag D/S
  • cystic mammary glands
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15
Q

rabbit does may develop ____ and ____ after breeding or parturition.

A

pyometra, endometritis

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16
Q

true or false: pseudopregnancy/pseudocyesis can occur in rabbits

A

true

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17
Q

pseudopregnancy/pseudocyesis in rabbits is usually due to….?

A

infertile mating or nearby male rabbit

can occur in solitary does

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18
Q

what happens during a pseudopregnancy/pseudocyesis in a rabbit?

A

ovulation occurs, CL produces P4, enlargement of uterine + mammaries most profound in first 10 days

organ involution by day 16, CL degenerates after day 18

does will pluck fur to make a nest after 18-22d

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19
Q

tell me about rabbit OHEs

A
  • express bladder under GA in ventral recum. (don’t want urine in vag)
  • long broad ligaments w lots of fat
  • don’t remove cervices during routine OHE
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20
Q

where are the scrotal sacs located relative to the penis in rabbits?

A

craniolateral

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21
Q

when do testes descend in male rabbits?

A

10-14 weeks

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22
Q

what type of castration is preferred in male rabbits? why?

A

closed
reduce post-op inguinal hernias

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23
Q

what must you do if you do an open castration in a rabbit?

A

close superficial inguinal ring

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24
Q

when Is sexual maturity in ferrets?

A

4-8 mo (first spring after birth)

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25
when do you usually spay/neuter ferrets? what does this cause?
before 6 weeks predisposed to adrenal dz (loss of negative feedback of gonadal steroids and hyper stimulation of LH receptors on adrenal cortex)
26
***what type of ovulators are ferrets? what kind of estrous cycle do they have?***
seasonally polyestrous induced ovulators
27
***when are ferrets most sexually active?***
long photoperiod (Mar-Aug)
28
***when do ferrets ovulate?***
30-40h after sexy times
29
***how long is ferret gestation?***
41-42 days (pseudopregnancy similar)
30
why should you always try to breed intact female ferrets?
~half of estrous females will remain in estrus and develop BM tox from high E2 concentration
31
what is the tx for the BM tox that can happen when intact female ferrets aren't bred?
100 IU hCG, followed by OHE when stable (once anemia and thrombocytopenia resolved)
32
in ferrets, _____ cysts are secondary to _______.
prostatic, transitional cell tumors in bladder
33
***how long is the hamster estrous cycle?***
4 days
34
how can you tell that a hamster is going to ovulate?
opaque vag D/C the day before ovulation no D/C 4 days before breeding = preg most likely
35
hamsters are _____ breeders. when are they most sexually active?
seasonal long photoperiods
36
when can you breed hamsters?
female: 10 weeks male: 14 weeks
37
should you separate males and females hamsters after sexy bone times?
females usually taken to males for breeding; if receptive, *they can remain together for the night, then separate in the morning*
38
***how long is hamster gestation?***
15-16d
39
hamsters are born _______.
altricial (not precocial)
40
true or false: you should provide nesting material for hamsters and minimize disturbance 1 week post partum
true
41
true or false: hamsters will cannibalize litter or put pups into cheek pouches to protect them
true
42
when do guinea pigs have their first estrus? when can they be bred?
first estrus: 5-6 weeks female: 500g (2-3mo) male: 650g (3-4mo)
43
why must you breed guinea pig females before 6-10 mo?
because pubic symphysis will close and they will be at risk of dystocia
44
***what type of estrous cycle do guinea pigs have? what kind of ovulators are they?***
polyesters, year round spontaneous ovulation
45
***what is the duration of the guinea pig estrous cycle? how long does estrus last?***
15-17d estrus: 24-48h
46
***how long is the gestation period in guinea pigs***
65d
47
what must you do for pregnant guinea pigs?
avoid excessive calories, 30mg/kg/day *vit C*, 4mg/kg/day *Ca* late gestation, ensure exercise
48
how can you use the fibrocartilaginous pubic symphysis of guinea pigs to predict parturition? what hormone helps you do this?
relaxin! symphysis disintegrates after day 30 1.5cm apart 48h prepartum 2-3cm apart at parturition
49
what can you give to induce parturition in guinea pigs >66d gestation?
oxytocin
50
guinea pig parturition should occur in _______mins.
15 mins
51
guinea pigs have fertile estrus _____ after parturtiion
2-15h
52
guinea pigs are ____ at birth
precocial
53
when should you wean gunea pigs?
2-4 weeks
54
true or false: pseudopregnancy is common in guinea pigs
false! it is uncommon
55
***what 2 diseases are pregnant guinea pigs predisposed to?***
- preg tok (preg ketosis) - hypocalcemia
56
when does pregnancy toxicity usually occur in guinea pigs? what is the usually outcome?
last 2 weeks of pregnancy fatal
57
what are the predisposing factors for pregnancy toxicity in guinea pigs?
- obesity (>800g) - fasting - first or second pregnancy - change in diet - stress - genetics
58
how do you dx pregnancy toxicity in guinea pigs?
ketones in urine aciduria
59
how do you tx preg tox in guinea pigs?
- fluids w/ dextrose - Ca gluconate - prednisone (if shock)
60
how do you treat periparturient hypocalcemia in guinea pigs
Ca gluconate
61
when do mice reach sexual maturity?
6-8 weeks
62
***what is the cycle length of mice? how long does estrus last?***
4-5 days estrus: 12h
63
what can you give to induce ovulation in mice?
eCG or hCG
64
when should you remove the male mouse from the female mouse after breeding?
when pregnancy apparent
65
***what is the gestation length in mice?***
19-21 d
66
when can mice become pregnant again after parturition
24h post partum
67
true or false: cannibalize is common in mice (with babies)
true
68
***what is the cycle length of rats?***
4-5d
69
***what is the gestation length of rats?***
21-24d
70
when do rats reach sexual maturity?
female: 8-12 weeks male: 6-10 weeks
71
do you have to remove male rat from female rat after sexy times?
nope! male rats are "family oriented" and can stay with female and pups
72
anogenital distance in males is twice as long as females in what species?
mice, rats, gerbils, hamsters, chinchillas
73
in which species do females have a penis-like structure?
rabbits: vag papilla chinchilla: cone shaped clitoris ventral to vag
74
how can you determine sex in guinea pigs?
boars: extrudable penis female: u-shaped vag membrane

541 (sex class) (22 decks)

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