Genesis 30:36-38

New King James Version

³⁶ Then he put three days’ journey between himself and Jacob, and Jacob fed the rest of Laban’s flocks.

³⁷ Now ^(A)Jacob took for himself rods of green poplar and of the almond and chestnut trees, peeled white strips in them, and exposed the white which was in the rods. ³⁸ And the rods which he had peeled, he set before the flocks in the gutters, in the watering troughs where the flocks came to drink, so that they should conceive when they came to drink.