Pigs have a powerful drive to root and explore with their snouts. Conventional farming systems that deny this fundamental behaviour cause significant welfare harm. Understanding this need is key to improving pig welfare.
The denial of rooting behaviour represents a fundamental welfare failure in conventional pig farming. Pigs are highly motivated to investigate their environment with their sensitive snouts, and this behaviour has deep ethological roots. When this drive is frustrated, pigs redirect to abnormal behaviours including tail-biting, which causes injury and infection. The industry response of routine tail-docking treats the symptom while leaving the underlying cause unaddressed. The pain of tail-docking without anaesthesia adds further welfare harm. Providing adequate rooting material including straw, compost, or peat resolves tail-biting in most cases and dramatically improves welfare. Higher welfare systems with rooting material are technically and economically viable but require industry-wide adoption.