'Herdmen' in the Bible

Then Abram said to Lot, Let there be no argument between me and you, and between my herdmen and your herdmen, for we are brothers.

But the herdmen of Gerar had a fight with Isaac's herdmen, for they said, The spring is ours: so he gave the spring the name of Esek, because there was a fight about it.

Then Jacob said to the herdmen, My brothers, where do you come from? And they said, From Haran.