A bunch of Cows eating grass on a hill. Photo taken somewhere along the Great Ocean Road, Victoria, Australia. August 22nd, 2010. View on Flickr, Photo.Duncan.co, Imgur, or download the full resolution version. (This photo is the cover of Friday Mixtape 225)
photo by jurveston
Factory farming techniques, most commonly used with pigs and chicken, often involve keeping animals confined in cramped conditions.
For pigs, who are highly intelligent, these conditions can lead to stress and aggression.
However, GM scientists are actively investigating ways to remove the stress and aggression gene from animals, effectively turning them into complacent zombies.