REVISION SESSION Flashcards

1
Q

What would be recommended to supress sexual behaviour in a mature dog for 4 months?

a. Methyltestosterone
b. Medoxyprogesterone
c. Orchiectomy
d. GnRH analogs

A

d. GnRH analogs

Methyltestosterone → can use it but would have to give it every day, works on HPG axis would have the same negative feedback → a lot of testosterone sends neg. feedback to hypothalamus, decreases GnRH & therefore production → shut down sperm production & decrease fertility

Medoxyprogesterone → may work as well → negative feedback to hypothalamus → may develop mammary glands etc. so wouldn’t give too much → can also cause abnormalities

Orchiectomy → permanent

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2
Q

What diagnostics may be performed to confirm a 4 month old dog is cryptorchid?

a. Abdominal Ultrasound
b. GnRH stimulation test
c. No diagnostics necessary at this time
d. Exploratory laparotomy

A

c. No diagnostics necessary at this time → wait till inguinal rings close after 6 months

GnRH stimulation test → giving GnRH to the animal & measuring testosterone → if testosterone is elevated it means there is some testicular tissue in the

Don’t breed from cryptochid perhaps → might be some inheritance of the condition
They can breed (if unilateral)
If over 6 months would palpate, run GnRH stim test or ultrasound

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3
Q

What testicular abnormality may be associated with this presentation?

a. Instertitial cell tumor
b. Sertoli cell tumor
c. Seminoma
d. Mixed cell tumor

A

b. Sertoli cell tumor
Produces a lot of estrogen leading to alopecia
To diagnose: there will be a mass in the testes → can ultrasound and see

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4
Q

What is the most common reproductive disease of intact male dogs > 5 years?

a. Prostatitis
b. Benign prostatic hyperplasia
c. Balanoposthitis
d. Prostatic adenocarcinoma

A

b. Benign prostatic hyperplasia

BPH signs: look up cos this dickhead is rambling
- Feels like a Barbie butt when you palpate…. Don’t ask.
- Probably not painful on palpation
- Can diagnose with ultrasound
- Diagnose with semen collection
Prostatitis: dogs are very painful if you try to make them ejaculate → gonna get your face bitten off
Treatment: Finaceride?? → control BPH → volume of seminal fluid is decreased but still works
- Castrate if dog doesn’t have any reproductive value → BPH is an androgen dependent disease so remove testosterone

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5
Q

What is a BBSE selecting for?

a. Fertile bulls
b. Bulls with good sperm production
c. Potential satisfactory breeding bulls
d. Bulls for genetic improvement

A

c. Potential satisfactory breeding bulls

The only thing you can tell is that that bull has the potential to be a good breeder

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6
Q

What may be recommended in a cattle herd with poor pregnancy rate after new bulls introduction

a. Endometrial culture on non-pregnant cows
b. Semen analysis of the bulls
c. Preputial scraping of the bulls
d. Ceftiofur treatment for 3 days to non-pregnant cows

A

c. Preputial scraping of the bulls

Be thinking camylobacter & tritrichomonas
Loooove the crypts of the prepuce (in Jose’s voice)
Can check for both with preputial scraping → campy under microscope, trich needs to be sent in a special medium

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7
Q

A stallion ejaculated 11 billion sperm with 75% motility. How many mares can be inseminated

a. 20
b. 16
c. 12
d. 8

A

b. 16

How to calculate → 11X10^9 X 0.75 = 8.25X10^9 then divide by 500 = 16.5 → fresh semen
If fresh cooled semen then divide by 2 = 8
For frozen semen → want at least 250 million

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8
Q

What condition is affecting this stallion?

a. Paraphimosis
b. Phimosis
c. Priaprism
d. Penile hematoma

A

a. Paraphimosis → inability to retract the penis

Phimosis → inability to protrude the penis
Priaprism → erect penis – constant erection

Penile haemartoma - → when they are erected then laminae between corpus may be broken and allows blood to get out of corpuses and make big haematoma

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9
Q

What treatment is recommended to treat this condition?

a. Anti-inflammatories
b. Reduce edema & replace penis
c. Local corticosteroids
d. Exercise

A

b. Reduce edema & replace penis

Treatment in bull and stallion (not doggo due to dick bone)
Need to put it back because if its pendulous then blood will get stagnated in it and its gonna not be fun → secondary paraphism → tissue gets necrotised & bye bye penis
Reduce edema with ice & massage
Need to replace quickly and put a dick sling on the stallion or bull to keep it as close to the abdomen as possible
If they slip on concrete with it all hanging out they can break it

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10
Q

A seven yours old bull with grey coloured semen & neutrophils is likely suffering?

a. Balanoposthitis
b. Seminal vesiculitis
c. Prostatitis
d. Hematocele

A

b. Seminal vesiculitis

If it was a 2.5 year old bull you would probably do nothing as it would sort itself out
For an older bull treatment is to cull bull/put it in the freezer as cant treat

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11
Q

Is the tom in the picture castrated?
a. Yes
b. No
Note: there are spines on the penis

A

Spines on the penis are due to testosterone (androgen dependent). If he was castrated there would be no spines

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12
Q

What accessory sex glands the bull has?

a. Bulbourethral & prostate
b. Bulbourethral, prostate, seminal vesicles & ampulla
c. Ampulla, seminal vesicles & prostate
d. Seminal vesicles & prostate

A

b. Bulbourethral, prostate, seminal vesicles & ampulla

Different in other species
Dog only has prostate
Stallion has ampulla, prostate & bulbourethral < check this cos I think he said them all

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