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FA Therio > Camelid and Exotic Hoofstock Repro > Flashcards

Camelid and Exotic Hoofstock Repro Flashcards

1
Q

When are camelids mated?

A

What achieved 2/3 adult body weight, 12 months alpaca and 18 month llamas

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2
Q

What kind of ovulators are they?

A

Induced - need seminal plasma to induce LH surge (Gnrh) , peak LH 2-3hr after mating, Cl 2-5d then max P4 7-9 day post mate

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3
Q

How long is their cycle? when are they receptive to a male?

A

28 days and anytime they are not pregnant

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4
Q

What is the gestation length of camelids?

A

340d +/- 5
-Prolonged is common but dont induce unless medically justified
-98% left horn

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5
Q

Are abortions common in these guys?

A

No but could be anything - BVD, EHV1, EAV, Chlamydophila, lepto, campylobacter, toxoplasma, neospora canum, twins

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6
Q

How common is dystocia and what is usually the cause?

A

Uncommon (<5%)
-Interven if Stage 1 >6 hours or stage 2 >10min
-Maternal - failure cervical dialation and uterine torsio
-Fetal - fetomaternal disproportion, abnormalities and mispositioning

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7
Q

When does uterine torsion normally occur and what are signs?

A

8 month to term
-Colic in late gestation
Treat: roll, laparotomy or c-section

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8
Q

Which side do you normally enter for c-section?

A

Left paralumbar fossa

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9
Q

What kind of placenta do they have?

A

Diffuse epitheliochorial placentation
-like horse need to make sure all passes
-If retained normally all of it (>3hr)
Treat - oxytocin e 4-5hr, antibiotic and lavage

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10
Q

What should you do to process the neonate?

A

weigh, dip navel 3 time first 24 hours, check deformities (cleft palate), BOSE injection (0.5-1mg), make sure they got colostrum

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11
Q

What is the nursing rule?

A

Up in 1 hour, nursing in 2 hours of birth (should nuse every 1-2 hrs for first few days)
-Double weight in 1 month

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12
Q

Are they Cl dependent?

A

Yes

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13
Q

What does sustainability in the cervid industry rely on?

A

Semen cryopreservation, estrous synchronization, AI protocols

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14
Q

When do ceridae begin puberty?

A

9-18 months of age, varies by species

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15
Q

How many species of cervidae are there?

A

about 40

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16
Q

What kind of breeders are cervids?

A

Seasonally polyestrous - short day breeder

17
Q

How does the antler cycle work?

A

Summer: Low T, testicular atrophy, antler growth, increase VFI, fat deposition - antlers growing

Autum/Winter: Increase T and LH output, antlers mineralize, shed velvet, rapid mobilization of fat

Spring: Decrease T and Shed antlers

18
Q

When is the best time to collect and freeze sperm of cervids?

A

December (winter)

19
Q

How do you collect semen from cervids?

A

Immobilization and electroejaculation

20
Q

When is morphology the best?

A

December

21
Q

What does the chromatin stability test tell you?

A

How much sperm id damaged (best in December)

22
Q

What does the vesicular gland produce?

A

Seminal Plasma

23
Q

What does the seminal plasma look like in march for cervids?

A

57% pink tinged
But improved post thaw motility

24
Q

Why is semen quality best in December?

A

Morphology, DNA fragmentation, viability and acrosome integrity, highest testosterone

25
Q

When is scrotal size biggest in cervids?

A

September
-Highest output, EEJ limitation

26
Q

How do you collect sperm from the epididymis?

A

White tail deer - 2.5billion
56% motility
Need flush out vas deference

27
Q

What do spheroids in the seminiferous tubules mean?

A

Immune period, not good sperm output

28
Q

How long is Cervid Estrous Cycle?

A

18-24 days

29
Q

What does a cervids behavioral estrus look like?

A

Increased activity, proprioceptive behavior, terminated by copulation >24 hours

30
Q

How can you manipulate their estrus cycle?

A

CIDR and PGF2 12-14d
Pull CIDR and PMSG then 56-64 hours later timed AI

31
Q

What are the recommended sperm doses for AI in Cervids?

A

2-4 million for lap AI
10-20million for transcervical AI

32
Q

How do you perform laparoscopic AI in Cervids?

A

Immobilize
Dorsal recumbency
Locak 2% lidocaine line block
2 incision for trocer and cannula
Intrauterine deposit fresh chilled semen (both horns)

33
Q

What is the gestation of cervidae/

A

200-284 days (mid summer)

34
Q

What kind of placentation do they have?

A

Oligocotyledonary Synepitheliochorial

35
Q

What is the goal of deer breeding?

A

Increase Male: Female ratio of offspring (sexed semen can ensure right gender- flow cytometry)

36
Q

How do you breed with sexed semen?

A

Collect, extender, ship to ST genetics, sex-sorting, ship back overnight
LAI sat or Sunday

37
Q

What is the ratio of male to female with sexed semen?

A

5.6 : 1

FA Therio (14 decks)

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