Genesis 30:34-38

Laban said, “Good, let it be according to your word.”

So he removed on that day the striped or spotted male goats, and all the speckled or spotted female goats, every one with white on it, and all the black ones among the sheep, and put them in the care of his sons.

And he put a distance of three days’ journey between himself and Jacob, and Jacob fed the rest of Laban’s flocks.

Then Jacob took fresh rods of poplar, almond, and plane trees, and peeled white stripes in them, exposing the white that was in the rods.

He set the rods which he had peeled in front of the flocks in the drinking troughs, that is, in the watering channels where the flocks came to drink; and they mated when they came to drink.