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Flashcards in Diseases of the Bull Deck (73)
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1

What muscles need to be relaxed in order for an erection to occur in a bull?

Retractor muscles

2

Do bulls have a small or large corpus spongiosum?

Small

3

Do bulls have a small or large corpus cavernosum?

Large

4

What are 3 juvenile conditions of the penis and prepuce seen in bulls?

- Penile papilloma (warts)
- Penile hair rings
- Persistent frenulum

5

What is the etiology of penile papilloma (warts) in bulls?
What are 2 ways it can be introduced to bulls?

- Bovine papilloma virus
- Homosexual riding among young bulls and wounds

6

What are 3 clinical signs that can be seen with penile papilloma (warts)?

- Scant hemorrhage after coitus
- Hesitancy to extend penis or breed
- Usually single, pedunculate growth

7

What is the treatment for penile papilloma (warts) in bulls?

Surgical excision

8

What are 4 components of surgical treatment for penile papilloma (warts)?

- Towel clamp
- Tourniquet
- Local anesthetic
- 10 Fr. male dog catheter

9

What are 2 complications that can be seen with penile papilloma (warts)?

- Recurrence
- Urethral injury

10

What part of the penis was a ligament that can be clamped on to with a tool clamp to help secure it?

Dorsal portion

11

What is the etiology for penile hair rings?
How can they occur?

- Body hair accumulation on penis
- Homosexual riding among young bulls

12

What is the treatment for penile hair rings?

Remove the hair ring

13

What are 2 complications that can be seen with penile hair rings?

- Necrosis of urethra which can lead to a fistula
- Amputation of glans penis

14

What is the etiology of the persistent frenulum?

Incomplete separation of the penis and prepuce.

15

Can a penis be extended with a persistent frenulum?

Yes

16

How does a penis with a persistent frenulum deviate?

Ventral deviation

17

How do you diagnose a persistent frenulum?

Physical exam

18

How do you treat a persistent frenulum?

Surgical excision

19

What are 3 components of surgical treatment for a persistent frenulum?

- Towel clamp
- Local anesthetic
- Suture

20

Is persistent frenulum a heritable condition?

Yes

21

What is the minimal required motility for bulls?

30%

22

What are 3 conditions that can lead to preputial trauma and/or laceration?

- Excessive pendulous sheath
- Excessive preputial length
- Large preputial orifice

23

What are 3 components to diagnosing preputial trauma or lacerations?

- Swelling of sheath
- History
- Clinical signs

24

What are 3 differentials for preputial trauma or laceration?

- Hematoma
- Retropreputial abscess
- Urethral rupture

25

Which type of cattle is more prone to preputial trauma and lacerations, Bos indices or Bos taurus?

Bos indicus

26

When examining sheath conformation, the sheath should be above a line horizontal to the ground between what two body parts on the bull?

Between the carpus and tarsus.

27

What are 6 steps to how a preputial laceration can occur in a bull?

- Excess prepuce forced caudally during intromission
- Forms collar tissue
- Trapped between bull's abdomen and cow's bony pelvis
- Laceration on ventral surface occurs during ejaculatory lunge
- Lacerates longitudinal to long axis of prepuce
- Heals transversely as bull retracts penis

28

What are 2 treatment options for a preputial laceration?

- Medical
- Surgical

29

What are 3 forms of conservative therapy for preputial lacerations in bulls?

- Clean damaged tissues
- Emollient ointment
- Bandaging and slings

30

What are 3 ingredients used in an emollient ointment for the treatment of preputial lacerations?

- 2 g tetracycline powder
- 60 mL scarlet oil
- 500 g anhydrous lanolin