Genesis 30:41

41 Whenever the stronger females were ready to mate, Jacob would place the peeled branches in the watering troughs in front of them. Then they would mate in front of the branches.

Genesis 30:41 Meaning and Commentary

Genesis 30:41

And it came to pass, whensoever the stronger cattle did
conceive
Whose limbs were well compact, and were strong and healthy: that Jacob laid the rods before the eyes of the cattle in the gutters,
that they might conceive among the rods;
and bring forth party coloured ones, and such as were robust and strong like themselves; and this was another device of Jacob's to get the best of the flock. Aben Ezra thinks this refers to the two seasons of the year, when the flocks conceived; the one was in Nisan, in the spring, and such as were brought on that conception were strong, and therefore Jacob chose to lay the rods in the gutters at that time, that he might have the best cattle; and so the Targum of Jonathan calls these here the forward ones, as it does those in ( Genesis 30:42 ) we render feeble, the latter ones; which, according to Aben Ezra, conceived in Tisri or September, and what they brought were weak and feeble. (Based on the laws of genetics, Jacob's breeding of the best of the flock would produce higher quality offspring. Ed.)

Genesis 30:41 In-Context

39 And when they mated in front of the white-streaked branches, they gave birth to young that were streaked, speckled, and spotted.

40 Jacob separated those lambs from Laban’s flock. And at mating time he turned the flock to face Laban’s animals that were streaked or black. This is how he built his own flock instead of increasing Laban’s.

41 Whenever the stronger females were ready to mate, Jacob would place the peeled branches in the watering troughs in front of them. Then they would mate in front of the branches.

42 But he didn’t do this with the weaker ones, so the weaker lambs belonged to Laban, and the stronger ones were Jacob’s.

43 As a result, Jacob became very wealthy, with large flocks of sheep and goats, female and male servants, and many camels and donkeys.