Genesis 30:35

And he removed that day the he-goats that were ring-straked (banded) and spotted, and all the she-goats that were speckled and spotted, and every one that had some white in it, and all the brown among the sheep, and gave them into the hand of his sons. Laban took every precaution that he could think of, personally supervising the elimination of all the dark and spotted among the sheep and the light and spotted among the goats.