Since we had a late winter here in the Ozarks and I forgot to put down a weed block, I had weeds in my garden. I decided to borrow my neighbors goats to let them eat their fill. The hard part? Getting the goats to walk away from the herd. We put them in a UTV and drove them to my garden. After a bit they ate everything except my mint. And the goats fertilized as well. It was worth the effort. What I learned is that we would have better luck using our own hand raised goat. These guys missed their herd. We are planning on raising a milk goat or two. They are fun to have around on the farm. They are great lawn mowers. Down side is that they eat everything, yes, even your flowers. So protect the stuff you do not want eaten and weed that yourself. Everything else is fair game.
Older nanny goats no longer productive but can still eat.