Factory farming is a harmful and unhealthy way to produce food. Not only does it harm the consumers, it is abusive to the animals. A majority of the animals raised fir food live miserable lives in intensive confinement in the dark, overcrowded facilities, which is where we get name "factory farming."
Factory farming began in the 1920s, soon after the discovery of vitamins A and D. When these vitamins were added to feed, animals no longer required exercise and sunlight for growth. This is what allowed large numbers of animals to be raised indoors year-round. The greatest problem that was, and still is faced in raising these animals this way, was the spread of disease. This is the main problem with factory farming.
Factory farms make an unhealthy way for the animals to be raised. Living one's whole life which is, at the most, only a few months long, in a small, cramped cage is not a way for anyone, human or animal, to be living! The next time you go to your local grocery store for eggs or a meat product, think twice about how that animal was raised, and see if you can make a difference about factory farming. Speak out against factory farming.