HGG Community Forums

1. Inbreeding has no effect.
2. Sounds like you get WF for the most part. Someone has a chart that explains lethal genes better than I can.
3. Lemme look.

As long as the link works correctly this should be the Lethal White chart.
https://imgur.com/1F06KAw

basically white factor is only a risk if there are potential lethal white genes present. this horse for example is a simple, not white chestnut with an extensive white factor. https://www.huntandjump.com/horse.php?horseid=4743575
because she doesn't have any potentially lethal genes, i wouldn't need to be careful breeding her, if she were intact, because her white factor itself won't really do anything. I guess in short, White Factor is not what's lethal. It's the Kit Genes that are lethal. White Factor, Splash, and Frame are 'boosters" that up the chance of a dead foal.

As and example, here is a colt from a pairing with extensive white factors. No white genes involved. All that was involved were splash from the sire and extensive WF. I really hope this makes sense and doesn't sound like i'm babbling!

HS 7777983

Other than white load on some KIT mutations, frame is the lethal white gene. Homozygous frame always results in a dead foal