European brindle
European brindle is a lethal gene, males will die at a very young age, so you only have brindle females. The brindle causes the pigment to fade, often in stripes so you get light patches/stripes allong the body.
European brindle, also known as X-brindle, is a fulnerable marking, when you're breeding mice, you will sometimes have runts, youngs that don't devellop as good as they should. Unfortunately, Breeding European brindle I find more mice that don't devellop as well as they should in this marking.
My goal in breeding these mice is to get a stable line of healthy big european brindles first, later in I'd like to improve markings and type too.