Question for anyone who has mares and foals. - Page 3
 
 

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Question for anyone who has mares and foals.

This is a discussion on Question for anyone who has mares and foals. within the Horse Breeding forums, part of the Horse Breeds, Breeding, and Genetics category
  • Mustard plants and pregnant mares
  • Congenital hypothyroid dysmaturity syndrome+mustard

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    05-29-2013, 05:42 PM
  #21
Yearling
No Qtrbel, I don't know for sure - only what I read about the late term aborting in areas where these things are found. May be way off the mark here
     
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    05-30-2013, 02:36 PM
  #22
Started
Seems lately,Vets are recognizing that theses Dysmaturity in foal/foal deaths as congenital hypothyroidism. I have heard of a couple people I know that had sickly foals & vet treated them as such.
Broodmare diets can play a role. Something I brought up in a previous post,that was what was suspected in foal deaths of someone I knew.

This is something I would suspect with your mare/foals.Be it brought on by Diet or enviromental factors
A case-control study of the congenital hypothyroidism and dysmaturity syndrome of foals.

Related Links also within that page
texasgal, Merlot and DeliciousD like this.
     
    05-30-2013, 02:42 PM
  #23
Green Broke
^^ THAT is fascinating. It would almost have to be environmental/diet related for a number of foals in close proximity to be effected.

This certainly gives me something to read while I'm on lunch .. not that I EVER intend to breed again .. I just love the research.


"This study suggests that congenital hypothyroidism and dysmaturity syndrome in foals may be the result of diets that contain nitrate or that are low in iodine being fed to pregnant mares."
~ from the above link.
     
    05-30-2013, 07:07 PM
  #24
Started
Yes, I know someone who had a hypothroidism foal this year. It couldn't stand at all to nurse. It had other things that apparently are quite common for the disorder such as a severe underbite, not the normal foal underbite. The owner ended up milking her mare and feeding the foal milk replacer, but she didn't survive. They also apparently have extra long gestation periods as well. I found some info on it below.


"Despite the normal-to-long gestation, the foals are dysmature (immature) in many ways," explained Allen. "They have soft, silky haircoats, and they look like preemies, but obviously aren't. They have soft, pliable ears, and if you stand them up, they have very lax tendons and joints. Their joints can bend in all directions and their toes can point up into the air."

Congenital Hypothyroidism Devastates Western Canada Breeders | TheHorse.com
     
    05-30-2013, 07:44 PM
  #25
Green Broke
Could it be genetic ? Something passed or crossed by he lineages? Example..
Trotter A when bred with trottor E = sick or dead foal. Maybe there is something back through the lineage that does not mix.
Or could there be heavy metal poison or such ? Maybe the two mares ate something in the pasture that the first mare did not . Could someone have Fed them something ?
     
    05-30-2013, 08:33 PM
  #26
Weanling
Since you have had 3 deaths in a short period I would be doing autopsy's on any future foals that don't survive.......I would also check the selenium levels of your mares........low selenium creates immunity problems

The other question is were you there at the birth? If you weren't it would be hard to speculate if the birth went normally.......dummy foals usually born in difficult births or those with placentitis ........usually need immediate medical attention by a vet and and in severe case need DMSO so stop the swelling that is taking place in the brain. They also usually need to be tube feed as they do not have a suckling reflex.

Hope you find out what is going on.

Super Nova
     
    05-30-2013, 09:14 PM
  #27
Started
Quote:
Originally Posted by Glynnis    
Yes, I know someone who had a hypothroidism foal this year. It couldn't stand at all to nurse. It had other things that apparently are quite common for the disorder such as a severe underbite, not the normal foal underbite. The owner ended up milking her mare and feeding the foal milk replacer, but she didn't survive. They also apparently have extra long gestation periods as well. I found some info on it below.


"Despite the normal-to-long gestation, the foals are dysmature (immature) in many ways," explained Allen. "They have soft, silky haircoats, and they look like preemies, but obviously aren't. They have soft, pliable ears, and if you stand them up, they have very lax tendons and joints. Their joints can bend in all directions and their toes can point up into the air."

Congenital Hypothyroidism Devastates Western Canada Breeders | TheHorse.com
There were 2 studies done with different results, one was done in Canada that focused on what the nutrition/vitamin/mineral/etc that the mares ate. The one done in Washington State looked at the plants the mares ate. Northern Spokane, Washington and up into Canada has mustard plants growing all over. You can read the findings/research and results when breeders cut access to their mares eating mustard in the last trimester.

My mom has battled mustard for many years in her pasture, she got rid of almost all of it before her first foal in 15 yrs arrived. The mare went a month longer than her normal (she wasn't a maiden, bred by previous owner), her filly was of preemie size with the ultra soft preemie coat and couldn't stand on her own. The vet (who diagnosed her as a mild case of mustard baby) came out and helped instruct what needed to be done, as well as checked the mare and commented that she shouldn't have had such a small foal for how healthy and large she was. The filly needed assistance in standing and laying back down for the first 48 hrs and then she could get up and down by herself, she also had a low IgG so got an IV for her immunization health. After 2 weeks of being kept in a small pen, she was finally strong enough to have a larger pen and when she was a month old she was strong enough to run in the pasture.

Here is a link to the study done in Washington State
http://www.vetmed.wsu.edu/depts-fdiu...oalsReport.pdf

Here is my mom's mustard baby as a newborn


And as a yearling


The breeding was repeated, same mare to same stallion, but this time the mare was kept on a dry lot after the snow melted in the spring with no mustard in reach to nibble on. Nice large, healthy filly was born right around the mare's normal gestation period.
texasgal and Merlot like this.
     
    05-31-2013, 04:37 PM
  #28
Started
^ Well that's good to know. I didn't know about wild mustard. I think it's more common in Southern Alberta than where I am, (don't quote me on that, I just haven't noticed any where I am) but Canola is pretty common in farmer's fields and sometimes you'll see rogue plants growing in the ditches near the field. Canola is part of the mustard family. I wonder if it would have the same effects, especially if it somehow seeded in a neighboring hay field.
     
    05-31-2013, 04:52 PM
  #29
Green Broke
I just wanted to say thanks to the OP, I have a mare in foal this year, My first(and likely last) breeding, and this thread has been highly educational. My sympathy goes out to you for the loss of your foals
Glynnis likes this.
     
    06-01-2013, 06:51 PM
  #30
Foal
Sorry, have been very busy lately. I don't know if I can answer all of your questions, but The mares are out in the pasture, which is land that has never been touched (except for our landlord used to have cattle on the land) but that is it, I was there for the births, and as soon as the foals could not get out of the sack, I broke it myself. NO, The colts was not starving, and no one comes near the mares when they are pregnant, so they couldn't have been fed something mares shouldn't eat. We have always bought the highest quality of mare and foal pellets, and there was no difficulty with any of the old mares my father an I used to have.

Thanks for all the different opinions and articles, they are very interesting. And if we do have another foal with the same problem, I will definitely do some intense researching. =)
     

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