factory farming

An inexpensive and efficient system of farming in which animals are fed for growth and kept in small pens. Usually used in a derogatory manner to highlight the negative consequences of such a system. Can we implement a system that is more humane than factory farming? My guess is that factory farming will be around as long as it's a less expensive option than others. If you're a big supporter of animal rights, you must be opposed to things like factory farming.