What does Genesis 32:14 mean?

Esau is coming Jacob's way with 400 men (Genesis 32:6). Is he coming to attack? Jacob doesn't know, so he prepares for the worst (Genesis 32:7–8) while praying for the best (Genesis 32:9–12). An additional element to Jacob's strategy is to prepare an enormous gift of livestock to give to Esau in hopes of appeasing any grudge his brother may still hold. Their last contact was some twenty years prior, when Jacob fled to avoid being murdered in a jealous rage by Esau (Genesis 27:41–45).

This verse begins a list of what herds of animals are included, starting with goats and sheep. Jacob sends 200 females and 20 males of each. This is a sizable herd, enough to provide considerable wealth in and of itself.