Space allowance in pig farming directly determines the quality of life available to pigs, with current commercial standards providing far less space than is needed for welfare-positive outcomes.
Overcrowded pigs experience chronic stress that pervades every aspect of their lives. They cannot move to avoid dominant conspecifics, cannot find undisturbed resting areas, and cannot perform exploratory behaviors without constant interruption. The chronic stress suppresses immune function, increases disease susceptibility, and promotes redirected aggressive behaviors including tail biting and ear chewing. Providing adequate space is the most fundamental welfare intervention in pig farming - but it directly conflicts with economic optimization in current industry models. Consumer demand for welfare-certified pork is the most powerful lever for change.