Is Lethal White Syndrome the same as albino?

       The Horse Forum > Horse Breeds, Breeding, and Genetics > Horse Breeding

Is Lethal White Syndrome the same as albino?

This is a discussion on Is Lethal White Syndrome the same as albino? within the Horse Breeding forums, part of the Horse Breeds, Breeding, and Genetics category

LinkBack Thread Tools
    04-15-2009, 07:55 PM
Is Lethal White Syndrome the same as albino?

I know the albino gene is fatal in horses. LWS sounds really similar and I was wondering if it was the same thing. If not, how are they different? Also, what horses are carriers of the genes?
Sponsored Links
    04-15-2009, 08:09 PM
Nope, they're not even related. Lethal white is caused by breeding frame overos to each other (25% chance for every breeding).

Lethal white syndrome - Wikipedia, the free encyclopedia
    04-16-2009, 06:02 AM
Where did you hear about albino horses being lethal? Albinism doesn't really exist in horses. Some say the cream gene is a form of albinism, and in that case, fine it exists, but is FAR from being lethal ;)
    04-16-2009, 07:21 AM
The stallion in my avatar is a lethal white carrier (visual frame overo) As long as I do not breed him to another lethal white carrier there is no chance of having a LW foal. To get the frame pattern you have to have a LW carrier

Not all Frame horses can be seen so its always best to test for the gene if you have a lot of pintos or paints

There is no such thing as an albino horse.
    04-19-2009, 12:43 AM
I thought albino horses were born, but they didn't live. It's what I read here:

Rare Horse Colors - The Facts

But then there's a link to another page that says exactly what you just said. So I don't think the one above is accurate.
    04-19-2009, 01:03 AM
Quick Overview: Overo Lethal White is caused by the overo gene when there are two copies of the gene present in the horse's genotype (the actual genes that are in the horse. The phenotype is what you see from the outside.) It is autosomal recessive, which means that it is a mutation on a non-sex chromosome and that the horse will only be affected by the disorder if both copies of the overo gene are present.

There is fairly strong evidence that all true overos are carriers of the mutation, but it is not know for certain at this time. The OLWS mutation is mainly found in frame overos, but it has been found in other overo patterned horses, and even solid colored paint horses that have ancestors with overo patterning. However, not all frame overos are carriers. (genetics can be so tricky) Personally I think that if you have a paint horse that you are going to breed, you should have it tested for OLWS. It costs only $25 at UC Davis in California, and is quick and easy to do.

"Lethal White" or Dominant Lethal White is caused by the dominant white gene, so it is different from Overo Lethal White. I do not know much about it other than that it is typically caused by both copies of the dominant white gene being present. Just as a side note, cremello and perlino are caused by a double dose of one of the dilution genes, so they are not true whites and their genotype for the dominant white gene is ww (homozygous recessive). Post if you would like the sources for this stuff. I have been doing a lot of research on genetic disorders lately and can list sources etc. if you'd like. :)
    04-20-2009, 02:32 AM
^^ Frame IS OLW. OLW IS Frame. End of story. Frame isn't always VISIBLE, ESPECIALLY if the horse has other patterns. But if a horse is positive for OLW, it IS frame, and can certainly have a patterened frame foal if bred to a non-frame solid horse.
    04-25-2009, 05:30 PM
Well - the "albino's" as they used to be known, are now referred to as double dilute's - cremello's, perlino's and smoky cream's

Believe me - they are all very much alive and well I own a cremello TB stallion - Guaranteed Gold:

And a perlino TB mare - Pearlescent - who is shown with her 1 day old foal who may well be the world's first smoky cream TB:

So far from being "dead" these horses are all very genetically and physically healthy ... :)
    04-25-2009, 06:03 PM
What kind of pattern does a Frame-patterned horse have?

And like everyone said, the albino gene isn't fatal. Other than that, I have no information. O_O
    04-29-2009, 11:57 AM
There is no such thing as an albino in horses. In order for the horse to be albino, it has to have white hair, pink skin and red eyes (not blue). Look at albino rabbits and rats and hamsters etc.
The blue eyes are a form of pigmentation and since albinos have no pigmentation it can't be.

Quick Reply
Please help keep the Horse Forum enjoyable by reporting rude posts.

Register Now

In order to be able to post messages on the The Horse Forum forums, you must first register.

Already have a Horse Forum account?
Members are allowed only one account per person at the Horse Forum, so if you've made an account here in the past you'll need to continue using that account. Please do not create a new account or you may lose access to the Horse Forum. If you need help recovering your existing account, please Contact Us. We'll be glad to help!

New to the Horse Forum?
Please choose a username you will be satisfied with using for the duration of your membership at the Horse Forum. We do not change members' usernames upon request because that would make it difficult for everyone to keep track of who is who on the forum. For that reason, please do not incorporate your horse's name into your username so that you are not stuck with a username related to a horse you may no longer have some day, or use any other username you may no longer identify with or care for in the future.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Old Thread Warning
This thread is more than 90 days old. When a thread is this old, it is often better to start a new thread rather than post to it. However, If you feel you have something of value to add to this particular thread, you can do so by checking the box below before submitting your post.

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is there any way to make her more white? She's already stunning white but how can I.. charroit Horse Grooming 33 12-30-2008 05:18 AM
Albino horses hrsrdr Horse Breeds 18 11-17-2008 09:41 PM
Equine Mutilation Syndrome clm Horse Riding 1 08-08-2008 10:41 AM
Could this be Navicular Syndrome??? mucka Horse Health 8 05-22-2008 01:40 AM
LETHAL WHITE FOAL SYNDROME - INFORMATION sparky Horse Health 4 01-11-2007 11:25 PM

All times are GMT -4. The time now is 05:26 PM.

Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0