Genesis 30:38-40

New Living Translation

³⁸ Then he placed these peeled branches in the watering troughs where the flocks came to drink, for that was where they mated. ³⁹ And when they mated in front of the white-streaked branches, they gave birth to young that were streaked, speckled, and spotted. ⁴⁰ Jacob separated those lambs from Laban’s flock. And at mating time he turned the flock to face Laban’s animals that were streaked or black. This is how he built his own flock instead of increasing Laban’s.