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Expert
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| Thinking of letting some mares go. What would their lives be like? Vet trips, once a month? etc.... Thanks ! |
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 It Goes On
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Location: Muskogee, OK | Are you talking about letting them go to be in a recip herd somewhere? Or? |
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Expert
Posts: 1690
| No. They would just be flushing eggs. They are older mares. |
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Expert
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| Is it a daily procedure ? Just done when they are in heat? Or? |
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 You get what you give
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Location: Texas | you can aspirate oocytes out of a pre-ovulatory follicle or an immature follicle. But are you asking about flushing embryos or flushing eggs??
Flushing embryos is for ET:
Flushing embryos they short cycle the mare, AI her, at day 7 they flush the embryo out, short cycle, and AI again, flush at day 7, etc…
Flushing eggs, or oocytes, is for ICSI and oocyte transfer:
Flushing oocytes, you actually aspirate them through the flank, and then you can fertilize them via ICSI, and transplant them into a mare. you could get several each time, but usually the pre ovulatory oocyte is best. Once again you would short cycle and collect every cycle if you wanted.
Oocyte transfer is where you take an oocyte from a donor mare and implant it into a recipient mare's oviduct, then AI the recip mare (you have to take the recip mare's oocyte out so you don't fertilize the wrong oocyte). they do a flank laparotomy with that.
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  Rebel Without a Cause
Posts: 2758
Location: Adopt a homeless pet - www.petfinder.com! | I read a really good article in QH Journal about the effects vets are seeing now in mares that flushed multiple times per year for several years. I'll see if I can find it and post it. |
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 Best of the Badlands
Location: You never know where I will show up...... | It's easier on them to be flushed than it is to carry and give birth to their own foal.
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Best of the Badlands
Location: You never know where I will show up...... | barrelhaybroker - 2014-03-28 3:02 PM No. They would just be flushing eggs. They are older mares.
The success rate is lower with older mares.
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Member
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| You can go Texas A&M website, and get all the information on flushing oocytes. They generally "do not" go through the flank unless mare has a issue.
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 Elite Veteran
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Location: Bigfoot Country | go to www.infoalinc.com and watch the videos. Tons of info |
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Expert
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| I work at a very BIG on repro. I see these donor mares everyday. Here's what they do an what I see (I don't work in the repro part of the clinic it's just part of my clinic I sometimes fetch recip mares or donor mares for them to check, flush...ect)
Donors: live in a 10X20. Stalls cleaned once a day. Fed twice a day and hay at midnight. They might get to go outside in the round pen for an hour or two a week. They don't get brushed or loved on because no one has time. Their gestate kept up with in terms of farrier work but not picked between trims. They all look great in terms of body condition. I've never seen any of them get their teeth done. I'm pretty sure the ones here get palpated/ flushed ect on every heat cycle.
Take your own opinion from that. I'm sure not all places are the same.
Personally if this is what all places are like I wouldn't send one of my mares to be a donor mare. To me, it's like thanks for giving me 150% all those years and winning all that money. I'm going to repay you by putting you in a stall with little to no positive human contact and you get to be poked at (no pun intended) every 2 or 3 days. |
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You get what you give
Posts: 13030
Location: Texas | elmer fud - 2014-03-29 9:18 AM
You can go Texas A&M website, and get all the information on flushing oocytes. They generally "do not" go through the flank unless mare has a issue.
You can do ultrasound assisted oocyte aspiration as well, where they take a vaginal probe with a needle in this pocket that slides in there. There is a marker on the ultrasound that shows you where the needle will go, so you line the u/s up with the follicle and aspirate.
That is probably the method they use more. I didn't look at the website but I'm a vet student at Texas A&M and one of my profs is in charge of the ICSI/cloning lab.
TAMU does not do oocyte transfer anymore because they don't have a large enough recipient herd for the flank laparotomies. Which is different than going through the flank for an egg. One is just sticking a needle in, the other is a surgical procedure. |
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