Genesis 30:38
And he set the rods, which he had peeled, before the flocks in the gutters in the watering-troughs, when the flocks came to drink, that they should conceive when they came to drink.And he set the rods, which he had peeled, before the flocks in the gutters in the watering-troughs, when the flocks came to drink, that they should conceive when they came to drink.