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Flashcards in Equine therio Deck (11)
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1
Q

When are Mares actively cycling (which par of the year)?

A

April - October (Long day breeders)

2
Q

Estrous cycle length

A

21 days

3
Q

Length of estrus

A

3 - 12 days (avg 7 days)

4
Q

When do mares ovulate during estrus?

A

the last 24 - 48 hours of estrus
Estrogen - from preovulatory follicle
Uterine edema

5
Q

What is the length of diestrus in the mare?

A

14 - 15 days
Progesterone - tone uterus
CL not palpable

6
Q

When are progestins effective to advance the breeding season in the mare?

A

Late transition period

7
Q

What percentage of mares that are healthy will cycle all year round?

A

25%

8
Q

What are the requirements for shipping semen into Washington state?

A

Current coggins test health certificate (EIA neg)
Neg EVA from current year/proof of vaccination
Semen permit # (issued by USDA)
Semen evaluation paperwork

9
Q

What is the best breeding management technique for live cover?

A

In-hand mating and at the most breed mare only once (so monitor follicular growth)

10
Q

How long after giving GnRH or hCG to a mature follicle mare does she ovulate?

A

36-48 hours

GnRH (Deslorelin oil base)

11
Q

When is the mare pregnancy dependent on the placenta to maintain pregnancy with progesterone?

A

after 100 days