Magnesium Use

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Magnesium Use

This is a discussion on Magnesium Use within the Horse Health forums, part of the Keeping and Caring for Horses category
  • Magox for horses
  • Hard crest on stallion treat with magnesium

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    08-08-2013, 11:16 PM
Magnesium Use

In another thread I discussed my fear for my horse to develop laminitis. He has not had any form of this disease. Last summer / fall he became very heavy (okay, obese) strictly on pasture. Because of winter I left it alone. During the winter he dropped maybe 100 lbs. He lost some of the pudge but he didn't thin out nearly as much as the other horses. Mid May, his neck started to slightly crest and become firm so I put him in dry lot with a bland grass hay and WORKED him daily to build cardio and muscle. For the first two weeks it was longing and then in saddle bending and supple.

By the fifth week, his excess weight had melted off his shoulders, back, and buttocks. His neck still had a slight fatty roll on top but overall his neck was not as thick throughout and the top crest was soft and supple.

I put him back out to pasture to prevent additional weight loss, he was now looking too thin. He has put a little weight back on since going back to the pasture but now he looks svelte and fit. His neck still has the fatty roll on top but it remains soft. I did put him in dry lot two weeks ago for maintenance on the neck but the weight is still correct for him.

I am terrified of him foundering and have researched the topic to understand the signs and causes, but it just confuses me more.

In another thread that I hijacked it was suggested to feed magnesium as a preventative measure. Has anyone done this?

Does it have to be daily? Did you feed Epsom salts or a different form of magnesium. He normally does not get grain but I do give him a 1/4 scoop as a "reward" after our training sessions and when we travel.

Thank you for sharing your experiences.
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    08-08-2013, 11:39 PM
Magnesium for Horses | Natural Health for Equines has plenty of info
And of course, Dr. Google comes up with a lot more.
AQHSam likes this.
    08-09-2013, 06:57 AM
Green Broke
You can get a 50lb bag of magnesium oxide from a feed mill for just under $20. At a teaspoon a day you really have little to lose trying. That's what the mills use to add Magnesium to their feeds.

I give it my 3 mares. I do know my soil, therefore my grass is magnesium poor so it can't hurt. Does it do any good? I don't know. None have foundered. 2 are very easy keepers, one ridiculously so.

He probably won't eat it on his own. You would have to spritz some hay pellets with water to make it stick.

For treats I'd give a handful of alfalfa or timothy pellets for a job well done. He will be just as happy.
AQHSam likes this.
    08-09-2013, 07:26 AM
Thanks! I had found several white papers on the use of magnesium and I am gong to give it a try. The papers said results on the crest in three weeks. I'll measure. If that thing shrinks I will stay with it.

I am excited to have a real plan in place rather than just hope that nothing happens!
deserthorsewoman likes this.
    08-09-2013, 08:34 AM
Green Broke
For what it's worth because I've never tested my old pony who is probably IR, I did see a reduction in what I would call water weight in her. Less puffy around her eyes. She's 38 yrs old so I'm kinda cautious about doing much for changes with her but the magnesium is cheap and pretty harmless.

Same noted in the old app mare I have. Not sure how old she is but she did have quite a crest going on. Made the old girl look really swaybacked. Now she doesn't look so bad.

No differences noted in the mare in her early teens.
    08-10-2013, 04:28 PM
First trip to a Grain Elevator

This morning, in my search for magnesium oxide, I visited my first grain elevator.

I have purchased a 50lb bag and per the general consensus online, he needs 10 grams, roughly a rounded teaspoon you would stir your coffee with (if you don't drink it black.)

I'm going to have that bag of MagOx for a lonnnnnnng time.

I am going to report on his progress over the next three weeks. Several white papers indicated I should see some results over 3 weeks.

Tomorrow, I will stop at Tractor Supply and get some timothy pellets to mix the MagOx into. Today I just went with a 1/4 c of grain, which probably defeats the purpose. But it was all that was available.

I'll report back in a week with new photos. Hopefully that nasty nick on his neck will start to heal over and grow hair.
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    08-10-2013, 04:29 PM
Here is the 2nd photo. I can only upload one at a time from the iPad.
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    08-10-2013, 07:22 PM
Lucky you
I asked the feedmill in town for MagOx.....they use it, but can't sell it.....for liability reasons.....that's California for you * shakes head*

Be sure you watch him for runny poo. If so, his storage is full and you can go down to maintenance dosage.....and have that bag even loooooonger.....
    08-10-2013, 07:29 PM
Originally Posted by deserthorsewoman    
Lucky you
I asked the feedmill in town for MagOx.....they use it, but can't sell it.....for liability reasons.....that's California for you * shakes head*

Be sure you watch him for runny poo. If so, his storage is full and you can go down to maintenance dosage.....and have that bag even loooooonger.....
I called a ton of feed stores yesterday and they all answered no like I was crazy. I went back and re-read the thread and saw where grain elevator was mentioned. First one I called said yep, they carry it and will sell in a 50lb bag or smaller quantity.

SCORE! I was really wondering how I would find it myself.

Thanks for the advice! I will keep an eye on that. It's pretty funny, I taught my barn owner something new today. He was out when I arrived, so I called him to find out where he would like me to store my bag. He suggested I climb to the top loft, get a sealable bucket and keep it in the bucket in the grain room.

15 minutes later he called and asked why I needed to store Magnesium Oxide. When I told him, he said, he hadn't heard of using it for cresty necks and sugar issues in horses. Thought about it a minute and agreed it made sense. Then said I taught him something new.

Not often the young jedi gets to teach the master.
    08-10-2013, 07:43 PM
Green Broke
I didn't have any problems with runny poo on any of my 3. I don't think it was 2 wks before I noticed less puffiness around the pony's eyes. The other one was so slow I didn't think it was doing much until I noticed she didn't look nearly as swaybacked one day. Doesn't hit the digestive system like epsom salts.

With the 50 lb bag you also have the luxury of adding a little to your tomato and pepper plants if you keep a garden.

Deserthorsewoman, I'd ask another feed mill. MagOx is routinely given to cattle in the spring to prevent grass tetany. Any place there are a lot of cows, dairy or beef there is going to be MagOx.

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