Genesis 30:41 KJV

39And the flocks conceived before the rods, and brought forth cattle ringstraked, speckled, and spotted.

40And Jacob did separate the lambs, and set the faces of the flocks toward the ringstraked, and all the brown in the flock of Laban; and he put his own flocks by themselves, and put them not unto Laban’s cattle.

41And it came to pass, whensoever the stronger cattle did conceive, that Jacob laid the rods before the eyes of the cattle in the gutters, that they might conceive among the rods.

42But when the cattle were feeble, he put them not in: so the feebler were Laban’s, and the stronger Jacob’s.

43And the man increased exceedingly, and had much cattle, and maidservants, and menservants, and camels, and asses.