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Repro (EQ) > Stallions > Flashcards

Stallions Flashcards

1
Q

What is a stallion compared to a colt?

A 
Colt = <4 
Stallion = >4
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2
Q

At what does puberty occur in stallions? When is maximal sexual maturity reached?

A

12-24 months puberty onset

Mature at 4-5 years

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3
Q

What type of breeders are horses?

A

Seasonal long-day

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4
Q

How long does spermatogenesis taken in stallions?

A

60 days

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5
Q

What is the maximum number of matings a stallion should do per day and per week?

A

2 mares per day

15 mares per week

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6
Q

What should stallions be tested for prior to mating?

A

Contagious equine metritis (CEM)

Equine viral arteritis (EVA)

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7
Q

What pathogen causes CEM and how are stallions tested for it?

A

Taylorella equigenitalis

Swab urethral fossa, penile sheath and pre-ejaculatory fluid

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8
Q

Stallions are the only carriers for the notifiable condition Equine Viral Arteritis. What does it cause in mares?

A

Vasculitis

Abortion

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9
Q

How is Equine Viral Arteritis prevented?

A

Artevac vaccine

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10
Q

How are penile injuries treated generally?

A 
Anti-inflm - NSAIDs or steroids
Cold therapy
Massage
Diuretics
Topical Tx
Cannot amputate if wanting to maintain mating career
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11
Q

What is the difference between priapism and paraphimosis?

A 
Priapism= prolonged erection
Paraphimosis = forestick stuck pulled back
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12
Q

What is the treatment for paraphimosis?

A

Support with truss
or GA and roll on back
Gently and firmly replace in sheath and place purse string suture

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13
Q

What is the treatment for priapism?

A

Flushing of corpus cavernosum under GA
Give benztropine mesylate IV
+/- phenylephrine in corpus cavernosum

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14
Q

What is a testicular hydrocele?

A

Fluid filled sac within scrotum

Lies alongside the testis

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15
Q

What is is a testicular varicocele?

A

Enlargement of veins in scrotal

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16
Q

Repro conditions of stallions include dermatitis, rectal tears, neoplasia, haemospermia, urospermia and neoplasias. Name some repro neoplasias in stallions

A 
Sarcoids
SCC
Melanoma
Seminoma 
Papilloma
17
Q

Who can perform AI on mares?

A

Trained paraprofessionals

18
Q

What material should be avoided when storing semen and why?

A

Rubber

Spermicidal

19
Q

How does AI affect the risk of endometritis?

A

Decreased risk compared to natural mating

20
Q

Where can AI straws be placed in mares?

A

Through cervix

Or into uterine horn on the side of ovulation (deep insemination)

21
Q

When should horses be served with fresh or chilled semen?

A

Up to 48 hours before ovulation

Same as natural service

22
Q

When should horses be served with frozen semen?

A

Up to 12 hours before to 6 hours after ovulation

Requires frequent US scans

Repro (EQ) (6 decks)

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