Until the government stopped it, some people here were feeding chicken droppings (which of course has wasted grain in it, etc) from poultry farms to cattle to fatten them. Of course, it might not be any worse than concentrates that you buy...
Sustainable Plantations and Agroforestry in Costa Rica
The meaning of life is to give life meaning. - Ken Hudgins / tiny ad
Edible Landscaping With A Permaculture Twist/ Second Edition - Kickstarter