Electronic sow feeders, ad libitum feeders, and precision nutrition technologies can improve pig welfare by reducing competition, enabling individual feeding, and monitoring intake patterns.
Feed competition is a primary source of aggression and stress in group-housed pigs. When feed is restricted or delivered in ways that create competition, dominant animals eat first and subordinates experience hunger and are more likely to be injured in fights. Electronic sow feeders in group gestation housing allow each sow to receive her allocated ration without competition, dramatically reducing aggression and stereotypy. Ad libitum feeding of growers reduces social tension around feed. Feeding technology is a key enabler of high-welfare group housing systems and should be recognized as a welfare tool, not merely a production tool.