Pigs are among the most cognitively sophisticated farm animals, with intelligence comparable to young children, making cognitive stimulation a welfare necessity rather than a luxury.
Pig intelligence creates both opportunity and obligation for welfare. The opportunity is that pigs can engage with complex enrichment in ways that simpler animals cannot, enabling genuinely stimulating environments. The obligation is that an animal of this cognitive capacity experiences the monotony and frustration of barren conventional housing as a significant welfare harm. A pig that cannot explore, problem-solve, or engage with its environment is experiencing cognitive deprivation analogous to what would be recognised as severe deprivation in companion animals of comparable intelligence. Providing cognitive enrichment for pigs does not require expensive technology: rooting substrates, novel objects, foraging opportunities, and varied environments all engage pig cognition effectively. The challenge is scaling these provisions across commercial pig farming systems where cost and management simplicity have historically prioritised barren environments.