Repro Cycle Flashcards
When do Cattle come into puberty?
10-12 months
When do Horses come into puberty?
10-24 months
When do sheep come into puberty?
6-9months
When do goat come into puberty?
5-7 months
When do pig come into puberty?
6-7 months
When do dogs come into puberty?
6-24months
Earlier in small breeds
(Later in LARGE breeds)
When do cats come into puberty?
4-12 months
What is the length of the estrus cycle in cow?
21 days
What is the length of the estrus cycle in horses?
21 days
What is the length of the estrus cycle in goat
21 days
What is the length of the estrus cycle in sheep
17 days
What is the length of the estrus cycle in pigs
21 days
What is the length of the estrus cycle in dogs?
6-7 months
What is the length of the estrus cycle in cats
14-21 days
How long is estrus in the cow?
18 hrs
How long is estrus in the horse?
5-7 days
How long is estrus in the goat?
24-48hrs
How long is estrus in the sheep
24-36hrs
How long is estrus in the pig?
40-60hrs
How long is estrus in the dog?
9 days
How long is estrus in the cat?
6-7 days
When is ovulation in a cow (time from estrus)?
How long does ovulation last in a cow?
When do you breed a cow?
24hrs after estrus
6-12hrs after standing estrus seen
“Am-Pm rule”
When is ovulation in a horse (time from estrus)?
How long does ovulation last in a horse?
When do you breed a horse?
1-2 days before end of estrus (day 20-21ish) When CL is ~30mm
24-48hr
- breed in 2 day intervals
- start before ovulation for >success
When is ovulation in a goat (time from estrus)?
How long does ovulation last in a goat
When do you breed a goat?
40hrs after start of estrus
36hrs
Daily during estrus
When is ovulation in a sheep (time from estrus)?
How long does ovulation last in a sheep
When do you breed a sheep?
40hrs after start of estrus
30hrs
Daily during estrus
When is ovulation in a pig (time from estrus)?
How long does ovulation last in a pig?
When do you breed a pig?
2/3 of the way through estrus (~16hrs after onset of estrus)
24hrs
Daily or 12hrs into ovulation
When is ovulation in a cat (time from estrus)?
How long does ovulation last in a dog?
When do you breed a dog?
3-4th day into estrus
24-48hrs
Second day after ovulation
When is ovulation in a cat (time from estrus)?
How long does ovulation last in a cat?
When do you breed a cat?
INDUCED. During estrus queen is receptive, but will not ovulate w/o male
24-48hrs AFTER breeding
Daily from second day of estrus
Ok she is pregnant! YAY! How long is gestation in a cow?
Not preggo…Shit! How long till return of estrus?
When is the earliest you can detect pregnancy?
280days
Remember the cycle. I today is 11 days post breeding it means she will go back into estrus in ~10days
—-
Ok she is pregnant! YAY! How long is gestation in a horse?
What is she is not preggo
335 days
Q21 days in spring-summer
Ok she is pregnant! YAY! How long is gestation in a Goat?
What is she is not preggo?
145 days
Can rebreed Q21 days in fall
Ok she is pregnant! YAY! How long is gestation in a sheep?
What if she is not preggo?
145 days
Can rebreed Q17 days during fall
Ok she is pregnant! YAY! How long is gestation in a pig?
115 days
*3 months
3 weeks
3 days
Ok she is pregnant! YAY! How long is gestation in a dog?
What if she is not preggo?
65 days
Well…you are basically fucked for the next 6-7 months
Ok she is pregnant! YAY! How long is gestation in a cat?
What if she is not preggo?
65 days
Dont sweat it she will be receptive Q21days from spring-fall
When will first estrus return after parturition in a cow?
20-60days post calving
When will first estrus return after parturition in a horse?
9 days post foaling
When will first estrus return after parturition in a goat?
Next fall
When will first estrus return after parturition in a sheep?
Next fall
When will first estrus return after parturition in a pig?
4-days post weaning
When will first estrus return after parturition in a dog?
4-5 months post whelping
When will first estrus return after parturition in a cat?
4-6 weeks post queening
What type of estrus do cows have (how often to they come into heat each year?)
Polyestrus
Breed Q21 days or 20-60days post-partum
What type of estrus do horses have (how often to they come into heat each year?)
SEASONAL polyestrus
*long day
Breed in spring
What type of estrus do goat have (how often to they come into heat each year?)
SEASONAL polyestrus
*short day
Breed in fall
What type of estrus do sheep have (how often to they come into heat each year?)
SEASONAL polyestrus
*short day
Breed in fall
What type of estrus do pig have (how often to they come into heat each year?)
Polyestrus
Breed Q21 days or 4-10days post weaning
What type of estrus do dogs have (how often to they come into heat each year?)
Monestrus
Breed Q6-7months or 4-5months post-partum
What type of estrus do cats have (how often to they come into heat each year?)
Technically SEASONAL polyestrus, but are induced ovulators
Spring-Fall
When is the earliest you can detect pregnancy in a cow?
When is heartbeat detected
~25days via U/S
Maybe 25-30days
When is the earliest you can detect pregnancy in a horse?
When can you detect a heartbeat?
Day 14-18 via U/S- check for twins
Day 25-30 evaluate normal embryo development
Day 24–25
When is the earliest you can detect pregnancy in a goat?
When can you detect a heartbeat?
Day 18-20 w/ U/S
Day 25
When is the earliest you can detect pregnancy in a sheep?
When can you detect a heartbeat?
Day 18-20
Day 25
When is the earliest you can detect pregnancy in a pig?
Dx made by observing return to estrus 17-24days post breeding
When is the earliest you can detect pregnancy in a dog?
Day 21-22
- U/S
- Abdominal palpation- “string of pearls”
When is the earliest you can detect pregnancy in a cat?
- U/S: day 14-15
- Abdominal palpation- “string of pearls”: day 16-30
