Re: OT Lethal white disease in foals
This message is from: Tamara Rousso <[EMAIL PROTECTED]> Jamie - I think you should email UC Davis vet school with that info. The article is off of their website. Follow the link I included in that post. Tamara Fallbrook CA and busy packing up to move to Applegate OR which may soon mean I will be off the list. On Friday, August 12, 2005, at 03:50 PM, [EMAIL PROTECTED] wrote: This message is from: [EMAIL PROTECTED] Whoa now - do we know who wrote that article?? The Tobiano gene is NOT homozygous lethal. The Overo gene, OTOH, is. Obviously a "Tovero" could produce a homozygous Overo foal (lethal white)...but if you get one from a Tobiano, they're obviously not *just* a Tobiano. Jamie In the Mountains SW of Denver, CO In a message dated 8/12/2005 1:45:38 PM Mountain Daylight Time, [EMAIL PROTECTED] writes: I adopted a paint PMU mare that was bred to a stallion that we later found out carried the lethal white gene. Fortunately my mare turned out to not be in foal, but anyone breeding paints should know that the lethal white is NOT just confined to the overos... From a UC Davis article that can be found at http://www.vetmed.ucdavis.edu/ceh/HR20-3lethal.html: "The lethal white disease is most often associated with the overo spotting pattern in horses, but it can occur in tobianos and toveros as well. Horses with this disease are all white and die shortly after birth due to intestinal abnormalities (similar to Hirschsprung Disease in humans). Surgical intervention has not proved successful; therefore, this condition is lethal in all cases."
Re: OT Lethal white disease in foals
This message is from: [EMAIL PROTECTED] Whoa now - do we know who wrote that article?? The Tobiano gene is NOT homozygous lethal. The Overo gene, OTOH, is. Obviously a "Tovero" could produce a homozygous Overo foal (lethal white)...but if you get one from a Tobiano, they're obviously not *just* a Tobiano. Jamie In the Mountains SW of Denver, CO In a message dated 8/12/2005 1:45:38 PM Mountain Daylight Time, [EMAIL PROTECTED] writes: I adopted a paint PMU mare that was bred to a stallion that we later found out carried the lethal white gene. Fortunately my mare turned out to not be in foal, but anyone breeding paints should know that the lethal white is NOT just confined to the overos... >From a UC Davis article that can be found at http://www.vetmed.ucdavis.edu/ceh/HR20-3lethal.html: "The lethal white disease is most often associated with the overo spotting pattern in horses, but it can occur in tobianos and toveros as well. Horses with this disease are all white and die shortly after birth due to intestinal abnormalities (similar to Hirschsprung Disease in humans). Surgical intervention has not proved successful; therefore, this condition is lethal in all cases."
OT Lethal white disease in foals
This message is from: Tamara Rousso <[EMAIL PROTECTED]> I adopted a paint PMU mare that was bred to a stallion that we later found out carried the lethal white gene. Fortunately my mare turned out to not be in foal, but anyone breeding paints should know that the lethal white is NOT just confined to the overos... From a UC Davis article that can be found at http://www.vetmed.ucdavis.edu/ceh/HR20-3lethal.html: "The lethal white disease is most often associated with the overo spotting pattern in horses, but it can occur in tobianos and toveros as well. Horses with this disease are all white and die shortly after birth due to intestinal abnormalities (similar to Hirschsprung Disease in humans). Surgical intervention has not proved successful; therefore, this condition is lethal in all cases." The whole article is quite good. Tamara As of next week Applegate OR On Friday, August 12, 2005, at 11:53 AM, [EMAIL PROTECTED] wrote: This message is from: [EMAIL PROTECTED] Jean Ernest wrote: The Lethal white occurs in paints,,I forget which,Overo, I think. breeding two with a lot of white may produce an lethal whit..Many don't even survive to be born. Jean, You are right about it being Overo that produces the lethal white. Howerver, it can happen to any that carry the overo gene. A friend had a crop out mare (QH who had too much for the QH registry at that time) woh had only one white spot on her belly. She had a lethal white when bred to an overo stallion. When I bred my breeding stock mare to an overo stallion I kept my fingers crossed! I lucked out! Barb Lynch
