Dutch harness horse drama. Update major mare/ foal neglect Nov 2023 post 1782 Update Kate Shearer responds post 1930 Nov 25/23

Is that a variant of the SODDI defense? (Some Other Dude Done It.)

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Everyone, “inner city” or not, is innocent until proven guilty. So anyone accused of anything, by pleading not guilty, is saying someone else did it.

Yes sorry for not clarifying. I would never fetal sex a typical ET. But technically an icsi is an ET at least I have to check both boxes on the Kwpn papers lol

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That’s not the point, though, is it. The point of SOCMOB is a claim that the victim had absolutely nothing to do with, and therefore shares no responsibility for, what happened.

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Interesting. I never thought about the difference. The ICSI procedure uses much less sperm. But neither are totally neutral on the donor mare.

Yes. In situations where it’s pretty clear the violence was gang related, as they say around here.

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I have no idea what you just said…

Google, translate this for me… :rofl:

Edit. Thanks Google. Yes, that is enough internet for me today. I feel like “the birds and the bees” just became “the birds and the bees and the microbiologist”. Oh but we live in gloriously science-y times!

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It’s actually really interesting and I’ve learned a lot during the process. Literally they take 1/10 of a straw and take a single speed and put that into a single oocyte. It’s actually really fascinating!!! ! 7 beautiful oocytes waiting for their swimmers lol image|481x500

Edit: sperm not speed…typing on my phone

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How do they decide which sperm? (Although I think speeders is probably a better name!) And what is the success rate?

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I’m sure the Drs doing this dont care all that much about those impacts except as they effect the program. Having been through a few miscarriages myself and learning about a friend’s IVF saga, pregnancy stops and starts are not a fun ride as the uterus holder…

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They let us decide. I have a huge sperm collection to choose from. But if you mean which sperm in the actual portion of the straw there is actually a ranking depending on how it swims(swimming in circles or sideways is bad), how the tail on the sperm looks, etc. It’s really fascinating. Dr Roger Souza has a bunch of stuff on his page

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This is actually a bit interesting because I was wondering how they select the sperm, and if there are any advantages or disadvantages in comparison to letting nature chose the sperm that fertilizes the egg.

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I was wondering the same thing!

Re: sperm selection - I’ve been away from the breeding world for a long time, but IIRC, you generally want sperm that swim straight and fast and show much “vigor” (sort of Michael Phelps-type swimmers).

Some breeders also were trying to preselect sperm by sex - if they wanted a colt, they tried to use YY sperm because they swam faster than XY sperm. If they wanted a filly, they preferred to use XY sperm. And the timing of insemination versus ovulation was critical for sex selection, because although they are faster, YY sperm do not have the longevity of XY sperm. So for a “natural” dose of semen that hasn’t been filtered for sex chromosomes (YY versus XY), the YY sperm will get to the oviduct first. If the egg hasn’t been released yet, the YY sperm will die off while waiting around. Meanwhile, the slower XY sperm will get to the oviduct and fertilize the egg when it is released.

I do not know however if this process was worth the cost - as I recall, it was pretty expensive to filter sperm by sex chromosome, and not often attempted because it had a serious negative impact on the longevity of the sperm. IOW, the longevity meter is ticking away during the filtering process and you don’t want to do anything that may have a detrimental effect on the sperm.

My knowledge though was from pre-ICSI days. Kasheare (or others who may know) - are breeders who use ICSI filtering sperm by sex chromosome? Or does that just add another huge risk factor to the whole process?

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Oh it’s very specific which one they choose. Dr Souza has a great website/Facebook RS Reproduction. I kind of stumbled into what I was doing but have gained a ton of knowledge over the last 2 years now

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I have never filtered sperm for sec chromosome. I was lucky to get two baloubet fu route foals from one icsi straw and every time you mess with any of the process more like sexing the embryo or color testing etc you take essentially another 10% off it being a viable embryo to transplant

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Is the intent to get multiple embryos out of 1 straw?

How do they get the egg(s) out of the mare? Do they try to hyperstimulate the mare to produce more eggs like they do in people?

This is from Dr. Foss’s site. Very informative.

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Yes