Rain scald - Page 2

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Rain scald

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    12-22-2011, 08:53 PM
Its a him, and I have said 3 times now that all gear that has come into contact with him has been disinfected. He has not worn a blanket for some months now as he is spelling in the paddock recovering from injury, so the blanket on him right now has come straight out of a sealed plastic tub after being washed thoroughly after last being worn.
I just had a chat with my vet as I was curious about the Vit A, he said that is NOT the cause in Hugo's case, his levels were fine when he last had bloods done 2 months ago and have been fine every time he's had bloods done previously. He is on hard feed and supplements as well as hay.
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    12-23-2011, 01:34 AM
NZ & Ausie horses are very unlikely to be Vit A deficient as they get a massive amount of sun. More likely to be deficient in Copper and zinc both needed for strong skin structure.

It is not that infectous either as some will have it in the paddock and others not.
    12-23-2011, 08:42 AM
Green Broke
Vitamin A has nothing to do with sunlight, you have that confused with Vitamin D. The fungus is around and alot of horses with healthy immune system have it on their skin or hair but it doesnt cause an outbreak, It also needs a break in the skin to get a foot hold can be as simple as a fly bite or scratches.
In this case exposure + injury (possible weakened immunity maybe ?) then sunburn offering skin injuries making access much easier.
You mentioned injury. Is the horse on medication ? Just throwing this out there but I seem to recall taking something once that had a warning label on the bottle that said avoid sunlight as a side affect was less resistance to sunburn. If you can't find a source for a weakend immune system, just keep cleaning him with a disinfectant. If you can find concentrated lysol and mix that with water, spray the areas like you would fly spray and brush him. Keep doing it every other day or so for a week after it appears to be gone.
    12-23-2011, 10:57 AM
Originally Posted by Joe4d    
Vitamin A has nothing to do with sunlight, you have that confused with Vitamin D.
Realise that now - that's what happens when you reply to a post when you are really hungry!
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    12-23-2011, 07:50 PM
His injury is a long going injury, he raced until he was 7 with 32 starts behind him, so now his hocks are fusing among a few other issues with his joints. None of his treatment for that would weaken his immune system, he's on Pentosan injections, as well as joint supplementation.
    12-23-2011, 10:38 PM
Super Moderator
It is always Vitamin A. We have been treating horses that have come in with rain rot by using Vitamin A for about 40 years now. It works 100% of the time.

You do not have worry about disinfecting horses or tack if it is not ringworm. Ringworm is a true pathogen. The Bacteria and Fungi that cause rain rot are normal inhabitants of soil, so every horse is exposed to it all of the time. If their immune system is healthy and their skin is healthy, you cannot give it to them if you tried.

The same thing is true of lice. You cannot keep them off of a horse with a Vitamin A deficiency and you can't give them to a horse with healthy skin and a good immune system.

When we encounter rain rot, we give a horse 2 or 3 doses of Vitamin A (usually mixed with D and E) by using the injectable form used for cattle. We just give it orally and do not inject it. I use about 5cc a week until the good feed or supplements kick in. Then, we start them on our feed which is a custom mix and has an A-D-E premix added to it at the feed mill. We also use a loose mineral that has 150,000 units of Vitamin A per pound in it. We are very picky that they get plenty in the winter and spring. Horses will never get rain rot again as long as they are healthy and getting plenty of Vitamin A.

If you do not have access to fortified feed, you can use a supplement made by Farnam called 'Mare Plus'. It has a high level of the antioxident Vitamins and does not have a lot of the ones that make horses get high and silly.

Other symptoms of a Vitamin A deficiency include:

Runny, goopy or crusty eyes with stains running down from them.

Night Blindness.

Frequent bouts of Uveitis.

Scaly skin, bad hair coats, dandruff and susceptibility to rain rot, dew poisoning and scratches. Slow shedding with no other cause (like Cushings).

Lice -- usually in late winter and early spring in the US.

Mares that do not drop their afterbirth within a few minutes of foaling.

Problems breeding mares back after foaling.

Poor hooves and slow hoof growth.

All of these things are directly influenced by a lack of Vitamin A.

Horses get Vitamin A from the Carotene in their feed. Hay and stored feed does not keep Vitamin A in it for more than a month or two, so during the winter season, horses run out of Vitamin A. Vutamin A and the other fat soluble Vitamins are stored n the liver. They liver runs out in the fall and the horse is susceptible until the green grass comes out in the spring.

Some horses evidently store Vitamin A better than others. It will be the same horses, year after year, that get lice and rain rot before the grass greens up.

I have been recommending Vitamin A for about 40 years now, and not one person that has supplemented it has not had a problem with a single healthy horse since.

I have no idea why so many Vets are clueless about this, but they are. They also are not very up on other points of nutrition. I think they make more money selling a bunch of crap you don't need. I have known several people that insisted on using baths and sprays and salves and all kinds of labor intensive and expensive junk that the Vet sold them and fought rain rot until spring and then, miraculously it went away -- the same time the grass greened up. You cannot kill it and keep it gone if the horse just keeps getting it all over again.
    12-23-2011, 10:50 PM
I'll give a Vit A supplement a go then, but other than this bout of rain rot, he previously has not had any of the other symptoms you have listed. He's always got clear eyes, a beautiful soft, shiny coat (as shiny as a grey can be anyway) and good hoof growth.
I am wondering now, about his immune system being down. Over the last couple of days, I've had problems with his hind legs swelling, and he has dropped a little weight. I've called a couple of vets around this morning, but no one will come out until after the public holidays unless for an acute emergency. A few people have mentioned Ross River virus, which has been quite common in the area for the last few months, and he's showing similar symptoms.
    12-23-2011, 11:19 PM
Super Moderator
Very few horses get more than 1 or 2 of the symptoms. Some horses just get lice every winter. Others have goopy eyes. I think it hits each horse on that horse's 'weakest link'.

What is the Ross River Virus? Thank goodness there is one thing that we don't get here.
    12-23-2011, 11:23 PM
Ross River Virus fact sheet -
    12-24-2011, 11:55 AM
Green Broke
OP, my horse has this same thing. It has progressively gotten worse! Started with just a few scabs, which I quickly removed as to finding what it was. Since then I have tried everything in the barn that says antifungal, or rain rot on it. I've tried shampoos, sprays, dish soap, and even listerine. Nothing has cleared it up. Its gotten to the point where its all over his hind end, and has even gone down onto his hind legs. It is now slowly creeping up his back as well.

People at the barn have told me to dilute bleach and spray that on him. Don't want to do that obviously. I just bought some Vitamin A in hopes that something will help get rid of this stuff. I will let you know how it works! Good Luck!

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