Genesis 30:41; Genesis 31:10

Genesis 30:41

41 Moreover, whenever the stronger of the flock were mating, Jacob would place the rods in the sight of the flock in the gutters, so that they might mate by the rods;

Genesis 31:10

10 "And it came about at the time when the flock were mating that I lifted up my eyes and saw in a dream, and behold, the male goats which were mating were striped, speckled, and mottled.