Equine Reproduction

Question 1

What needs to be performed on intact and gelded male horses on a regular basis in order to prevent the build up of smegma?

Answer 1

sheath cleaning

Question 2

What urethral discharge may build up and harden in the sheath forming stones that many cause difficulty & pain with urination if not cleaned off regularly?

Answer 2

smegma

Question 3

Do older male horses produce more smegma than younger male horses?

Answer 3

ye

Question 4

What is the most common surgical procedure in horses?

Answer 4

castration

Question 5

Castration is performed on males of what age?

Answer 5

6 months or older

Question 6

Male horse castration is almost always performed where?

Answer 6

in the field

Question 7

Stallion castration is performed with what instrument?

Answer 7

emasculator

Question 8

What vaccine status must be confirmed before stallions can be castrated?

Answer 8

tetanus

Question 9

What are the two most common complications of castration?

Answer 9

hemorrhage

swelling

Question 10

What is a rare complication of castration?

Answer 10

evisceration

Question 11

How long does it take testosterone levels to drop in a horse?

Answer 11

1 month

Question 12

How long does it take for a castration incision t heal in a horse?

Answer 12

3-4 weeks

Question 13

How long does it take for an equine embryo to implant?

Answer 13

35 days

Question 14

Are mares seasonally polyesters?

Answer 14

yes

Question 15

How often do mares cycle?

Answer 15

every 15-26 days

Question 16

How long does estrus last in horses?

Answer 16

5-7 days

Question 17

What is the length of gestation in horses?

Answer 17

305-365 days

11 months

Question 18

What is the condition in which a mare will go into heat about 7 days after foaling, and can be rebred at this time?

Answer 18

foal heat

Question 19

What is the most common reproductive surgery performed on mares?

Answer 19

Caslick’s Surgery

Question 20

What surgery is performed in order to keep contaminants from entering the uterus via the vagina?

Answer 20

caslicks surgery

Question 21

What is a mare that has had Caslick’s surgery done called?

Answer 21

swen down

Question 22

Is dystocia common in horses?

Answer 22

no

Question 23

Is dystocia in horses an emergency?

Answer 23

yes

Question 24

Dystocias lasting more than how long tend to rarely produce a live foal?

Answer 24

1 hour

Question 25

Why do dystocias in horses that last more than one hour rarely provide live foals?

Answer 25

foal suffocates

Question 26

Udder enlargement occurs in horses at what time prior to foaling?

Answer 26

2-4 weeks

Question 27

Teats wax in horses how long prior to foaling?

Answer 27

24-48 hours

Question 28

Does vulvar discharge occur in horses that are about foal?

Answer 28

yes

Question 29

How long does stage 1 labor last in horses?

Answer 29

2-4 hours

Question 30

Will mares eat during stage 1 labor?

Answer 30

no

Question 31

When foaling during what stage should the tail be wrapped, and the caslick sutures removed?

Answer 31

stage 1 labor

Question 32

How long does stage 2 labor last?

Answer 32

20-30 minutes

Question 33

What does stage 2 labor begin with?

Answer 33

water breaking

Question 34

The amniotic sac can contain how much fluid?

Answer 34

2-5 gallons

Question 35

The amniotic sac should be visible within how many minutes during stage 2 labor?

Answer 35

10-20 minutes

Question 36

What should emerge after the front feet of the foal are emerged?

Answer 36

head

Question 37

What emerges just before the rest of the foal’s body emerges?

Answer 37

shoulders

Question 38

A foal should be breathing on it’s own how long after birth?

Answer 38

30-45 minutes

Question 39

What occurs at stage 3 labor?

Answer 39

passage of fetal membranes and placenta

Question 40

How long should stage 3 labor last?

Answer 40

2-4 hours

Question 41

If stage 3 labor lasts longer than how many hours should the vet be called?

Answer 41

6 hours