Equine - Stallion BSE Flashcards Preview

RUSVM Theriogenology > Equine - Stallion BSE > Flashcards

Flashcards in Equine - Stallion BSE Deck (26):
1

T/F: One nut equals no pass

True

If a stallion only has one testical, he should not pass the breeding soundness exam

2

Identify this piece of equipment:

Roanoke AV

3

__________ is a type of metritis in horses caused by Taylorella equigenitalis bacteria

Contagious equine metritis (CEM)

4

Which one of the following is not routinely performed during a breeding soundness examination of the stallion?

  • Assessment of libido
  • Evaluation of sperm motility
  • Ultrasonographic assessment of the ampullae
  • Karyotyping of the retrograde ejaculation

Karyotyping of the retrograde ejaculation​

5

T/F: The SFT standards for stallion spermatozoa is the ability to ejaculate 1 billion progressively motile, morphologically normal spermatozoa in the second ejaculate (1 hour after the first), after 1 week of sexual rest

True

6

Which one of the following structures is not important for thermoregulation of the testes of stallions?

  • Tunica vaginalis
  • Tunica dartos
  • Pampiniform plexus
  • Cremaster muscle

Tunica vaginalis

7

The minimum number of spermatozoa required for mares to achieve satisfactory conception rates is:

500 million progressively motile sperm

8

What is the most common method for semen collection in the stallion? 

Artificial vagina

9

When analyzing semen from a stallion, Alkaline Phosphatase (AlkP) greater than ______ indicates true ejaculate.

>3,000 U/L

10

Identify this piece of equipment:

Colorado AV

  • Heavier, but retains temperature better (heat sink)
  • Not as easy to manipulate stallion within AV
  • Will fit inside of phantom so stallion can service it like a mare

11

T/F: The cause of CEM is Taylorella equigenitalis. It is a Gram negative coccobacillus

True

12

What is the etiologic agent of CEM?

Taylorella equigenitalis​

13

Identify this piece of equipment:

Hannover AV

S​mall, less water, European

14

According to the Society for Theriogenology, what are the three potential scores that can be assigned after a breeding soundness examination in the stallion?

Satisfactory, Deferred or Unsatisfactory breeding prospect

15

Identify this piece of equipment:

Missouri AV

Lighter weight, Can manipulate stallion through AV easier

16

Identify structure 'B' on this impressively realistic diagram of the stallion genitalia:

Seminal Vesicle

17

What accessory gland in the stallion is most commonly affected by infection?

Vesicular glands

18

This accessory sex gland in the stallion is an enlargement of the ductus deferens:

ampulla

19

Identify structure 'D' on this impressively realistic diagram of the stallion genitalia:

Prostate

20

The nucleocounter uses _________ to stain the DNA of cells

Propidium Iodine (PI)

21

Chemical ejaculation in the stallion is accomplished by administration of _________, followed two hours later by Xylaxine

Imipramine

  • Imipramine lowers ejaculatory threshold
  • 3-5 mg/kg orally followed in 2 h by Xylazine - 0.66 mg/kg IV

22

Identify this piece of equipment:

Japanese AV - Nishikawa

23

Which of the following is false regarding the Sperm Chromatin Structure Assay (SCSA)?

  • It assesses sperm morphology
  • It assesses the amount of DNA fragmentation
  • The percent of chromatin acid denaturation is negatively correlated with fertility
  • Two of the above

It assesses sperm morphology​

24

How many days of daily semen collection are required to deplete the extragonadal sperm reserves in a stallion in order to estimate his daily sperm production?

5-7 days

25

T/F: The stallion has a penis that becomes engorged with confetti during erection

False

The stallion has a penis that becomes engorged with blood during erection. The stallion has a musculocavernous penis.

26

Identify the abnormality

Proximal droplet