Genesis 30:38

And he placed them in the troughs, where the water was poured out, so that when the flocks had arrived to drink, they would have the branches before their eyes, and in their sight they might conceive

Other versions

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.

English Standard Version

He set the sticks that he had peeled in front of the flocks in the troughs, that is, the watering places, where the flocks came to drink. And since they bred when they came to drink,

New International Version

Then he placed the peeled branches in all the watering troughs, so that they would be directly in front of the flocks when they came to drink. When the flocks were in heat and came to drink,