Adequate water access is a fundamental welfare requirement for pigs, with water restriction causing rapid welfare deterioration and often being overlooked as a primary welfare factor in welfare assessments.
Water is a fundamental physiological need second only to oxygen in urgency, yet inadequate water supply is a surprisingly common welfare failure in pig production. Blocked nipples, inadequate flow rates, insufficient drinker numbers, and poor water quality can all reduce intake below requirements without obvious visual indicators that stockpeople might notice. Dehydrated pigs show increased aggression, reduced feed intake, and in severe cases rapid health deterioration. Regular water system maintenance, flow rate testing, and monitoring of drinking behavior as a welfare indicator are simple, cost-effective management practices that prevent a welfare failure with potentially severe consequences.