Genesis 30:42

The flocks conceived before the rods, and the flocks produced streaked, speckled, and spotted.

Jacob separated the lambs, and set the faces of the flocks toward the streaked and all the black in Laban’s flock. He put his own droves apart, and didn’t put them into Laban’s flock.

Whenever the stronger of the flock conceived, Jacob laid the rods in front of the eyes of the flock in the watering troughs, that they might conceive among the rods;

The man increased exceedingly, and had large flocks, female servants and male servants, and camels and donkeys.