BVetMed3: Equine Reproduction

Description

Covers set of four lectures about the mare, the stallion, practical breeding, and parturition.
Marina Martins
Quiz by Marina Martins, updated more than 1 year ago
Marina Martins
Created by Marina Martins over 5 years ago
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Resource summary

Question 1

Question
In the northern hemisphere, when is the normal breeding season of the mare?
Answer
  • March to August
  • August to November
  • They breed year-round
  • November to March

Question 2

Question
How does increased day length affect the hormonal pathway of estrus in the mare?
Answer
  • It stimulates the pineal gland to produce less melatonin which acts on the anterior pituitary to produce FSH
  • It stimulates the pineal gland to produce more melatonin which acts on the hypothalamus to produce GnRH
  • It stimulates the pineal gland to produce less melatonin which acts on the hypothalamus to produce GnRH
  • It stimulates the pineal gland to produce more melatonin which acts on the anterior pituitary to produce FSH
  • It stimulates the pineal gland to produce less melatonin which acts on the anterior pituitary to produce LH
  • It stimulates the pineal gland to produce more melatonin which acts on the anterior pituitary to produce LH

Question 3

Question
How long is the oestrus cycle in the mare?
Answer
  • 21 days
  • 14 days
  • 28 days
  • 35 days

Question 4

Question
How long is a mare in the oestrus phase of her cycle?
Answer
  • 5-7 days
  • 7-14 days
  • 2-3 days
  • 1 day
  • 7-9 days

Question 5

Question
Which of the following would NOT manipulate the oestrus cycle of a mare?
Answer
  • Lights
  • Dopamine agonist
  • Rising plane of nutrition
  • Green grass effect

Question 6

Question
A mare has not been cycling properly and it exhibiting stallion-like behavior. Her inhibin levels are over 120 and her AMH levels are over 15. On ultrasound, you find her ovaries have a honeycomb like appearance. What do you diagnose the mare with?
Answer
  • Anovulatory follicles
  • Luteal ovarian cysts
  • Granulosa Theca Cell Tumor
  • Follicular ovarian cysts

Question 7

Question
When grading endometriosis with the Kenney biopsy scale, which grade do you expect the histopathology to show inflammation, fibrosis and reversible changes?
Answer
  • Category 1
  • Category 2A
  • Category 2B
  • Category 3
  • Category 4

Question 8

Question
Which of the following is a notifiable disease in horses?
Answer
  • Equine Infectious Anaemia
  • Equine Viral Arteritis
  • Contagious Equine Metritis
  • Klebsiella pneumonia
  • Pseudomonas aeruginosa
  • Equine Herpes Virus
  • Strangles
  • Dourine

Question 9

Question
A clitoral swab is used to test for what diseases?
Answer
  • Equine Infectious Anaemia
  • Equine Viral Arteritis
  • Contagious Equine Metritis
  • Dourine
  • Klebsiella pnemonia
  • Pseudomonas aeruginosa
  • Equine Herpes Virus
  • Strangles

Question 10

Question
Clitoral Swabs are used on which part of the clitoris?
Answer
  • Fossa
  • Sinus
  • Both fossa and sinus

Question 11

Question
What notifiable disease has venereal transmission and is spread by Trypanosoma equiperdum?
Answer
  • Dourine
  • Equine Coital Exanthema
  • Equine Infectious Anaemia
  • Equine Viral Arteritis
  • Contagious Equine Metritis
  • Equine Herpes Virus

Question 12

Question
A caslicks procedure is done to
Answer
  • correct any abnormal vulval conformations
  • correct any abnormal perineum conformations
  • correct any abnormal clitoral conformations

Question 13

Question
When using an ultrasound, at what part of the mare's oestrus cycle does her uterus look firm, have a high tone and is a muscular tube?
Answer
  • Anoestrus
  • Dioestrus
  • Oestrus

Question 14

Question
Which horse breed must always be bred using natural cover?
Answer
  • Thoroughbreds
  • Ponies
  • Cobs
  • Arabs

Question 15

Question
Which is FALSE regarding foal heat breeding?
Answer
  • It occurs in the first oestrus after foaling (approx 5-10 days after)
  • It usually has higher conception rates than breeding during a mare's normal cycle
  • It will bring next years foaling date forward
  • The mare can short cycle off foal heat

Question 16

Question
When is the ideal timing of insemination when using frozen semen in horses?
Answer
  • 48 hours before ovulation
  • 24 hours before ovulation
  • 12 hours before ovulation
  • 24 hours after ovulation
  • 12 hours after ovulation

Question 17

Question
What structure attaches the epididymis and testes to the scrotum?
Answer
  • spermatic cord
  • gubernaculum
  • mesorchium
  • suspensory ligament
  • ischiocavernous muscle

Question 18

Question
When is a stallion sexually mature?
Answer
  • 6 months
  • 10-12 months
  • 12-15 months
  • 14-18 months
  • 22-24 months

Question 19

Question
In the stallion, where is spermatozoa stored?
Answer
  • cranial epididymis
  • prostate
  • ampulla
  • bulbourethral gland

Question 20

Question
What attaches the penis at the root?
Answer
  • suspensory ligament
  • ischiocavernous muscle
  • corpus spongiosum
  • gubernaculum
  • mesorchium

Question 21

Question
A "cut proud" cryptorchid refers to
Answer
  • a unilaterally retained testcile in the inguinal canal
  • an incomplete castration where usually the epidymal tissue remains
  • bilaterally retained testicles found at the caudal pole of the kidney
  • an incomplete castration where usually part of the testicular tissue remains

Question 22

Question
What is the most common type of castration in the horse?
Answer
  • open
  • closed

Question 23

Question
What is the average gestation length in a mare pregnancy?
Answer
  • 340 days
  • 300 days
  • 350 days
  • 275 days
  • 360 days
  • 260 days

Question 24

Question
What type of placenta does a mare have?
Answer
  • Diffuse epitheliochorial
  • DIffuse endotheliochorial
  • Cotyledonary epitheliochorial
  • Cotyledonary endotheliochorial

Question 25

Question
When does implantation of the conceptus occur in a mare pregnancy post-conception?
Answer
  • D14
  • D20
  • D8
  • D22
  • D5

Question 26

Question
What is FALSE regarding the hormonal control of pregnancy in the mare?
Answer
  • eCG is produced from endometrial cups
  • eCG levels persist until 120-150d through gestation
  • when the mobile conceptus implants, it promotes a secondary ovulation from the mare
  • foetal oestrone sulphate increases in foetal compromise and prepartum

Question 27

Question
What stimulates parturition in the horse?
Answer
  • foetal cortisol
  • maternal cortisol
  • maternal prostaglandins
  • foetal prostaglandins
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