Here is an interesting article about a man raising goats.
It is encouraging to me right now, as I am having a hard time finding about 10 acres I can afford to buy to start my place. I might need to start a little smaller.
Here is an article about using goats to control brush. It has information about fencing, predator control, and goats per acre which I might find useful. "The percentage of brush cover and the number of acres need to be considered when determining stocking rate. One goat per acre per percent brush cover is a good minimum beginning rate." Of course, this is not completely accurate, since if the acreage has no brush, it could still support some level of goat grazing on the grass.
In their study, "Stock density ranged from a high of 3 to a low of 1.5 goats per acre." But yet they also say, "Stocking rate dropped to 0.5 goats per acre."