Genesis 30:41
Whenever the more vigorous of the flock came into heat, Jacob would place the branches in the troughs in front of the flock to make them mate by the branches.
Treasury of Scripture Knowledge
Summary
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.
Whensoever the stronger cattle did conceive
Bible References
Whensoever the stronger cattle did conceive
Genesis 30:41
Whenever the more vigorous of the flock came into heat, Jacob would place the branches in the troughs in front of the flock to make them mate by the branches.