Genesis 30:38

Overview - Genesis 30
1	Rachel, in grief for her barrenness, gives Bilhah her maid unto Jacob.
5	Bilhah bears Dan and Naphtali.
9	Leah gives Zilpah her maid, who bears Gad and Asher.
14	Reuben finds mandrakes, with which Leah buys her husband's company of Rachel.
17	Leah bears Issachar, Zebulun, and Dinah.
22	Rachel bears Joseph.
25	Jacob desires to depart.
27	Laban detains him on a new agreement.
37	Jacob's policy, whereby he becomes rich.

Genesis 30:38  (King James Version)
And he set the rods which he had pilled 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.