This page has been validated.
Black denotes the proportion of male blood of original mating in successive generations. White, the proportion of original female blood.
The dotted lines signify that a female is taken from the mating and mated to a male in the mating to which the arrow points. Straight lines signify that a male is taken and mated to a female in the mating to which arrow points.
This chart shows six generations, or two cycles of line breeding.
