Genesis 30:38-40

New Century Version

³⁸ He put the branches in front of the flocks at the watering places. When the animals came to drink, they also mated there, ³⁹ so the flocks mated in front of the branches. Then the young that were born were streaked, speckled, or spotted. ⁴⁰ Jacob separated the young animals from the others, and he made them face the streaked and dark animals in Laban’s flock. Jacob kept his animals separate from Laban’s.