what is this, the 19th century? why in the world does he have cowboys?
to feed cows, doctor cows, brand cows, drive through them in four wheelers or on a horse or on foot and look for sick ones to doctor, drive semi trucks full of cows or cow food, make sure cow water isn't frozen and break the ice if it is, find the baby cows and put an ear tag in their ear with the same number as the mom cow, look for random dead cows and try to figure out why they died, move cows from one area to another one for some reason, all kinds of stuff. there's a lot more to being a cow farmer than just having a shitload of land and cows. you also have to have cowboys. so three total things. have land, have cows, have cowboys.