Kejadian 30:41

Saat kambing dan domba betina yang sehat sedang berahi, Yakub selalu meletakkan dahan-dahan itu di palungan di hadapan kawanan itu, sehingga mereka kawin di dekat dahan-dahan tersebut.

And 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.