The Africans showed the settlers how to do open range grazing which means that they let the cows graze freely in the pastures. This way of ranching and raising the cattle is used because you can have lots of land and use it to your advantage. So the farmers would put their cattle out in the field then not have to worry because they were almost self sufficient because they could just eat the grass when they get hungry. That is why the Africans showed the settlers in the american this method . That is why you see these big cattle farms all over the country that use open field grazing because it's cheaper and easier.
