Research increasingly demonstrates that farm animals including cattle, pigs, sheep, and chickens have rich emotional lives that industrial farming systematically compromises.
Animal welfare science has moved beyond merely preventing suffering to actively cultivating positive emotional states in farm animals. Research documents that farm animals are not emotionally neutral but experience a range of positive and negative emotions that profoundly affect their welfare. Optimism and pessimism in pigs and other animals can be measured through cognitive bias tests and reflect their overall welfare state. Environments that allow animals to experience positive emotions through social bonding, exploration, and successful foraging represent dramatically better welfare than those that merely prevent the most acute suffering. This science provides a framework for aspiring to good lives for farm animals, not merely less bad ones.