Hence hanging up chains and old tires and putting down straw can make their lives fuller and more meaningful, which in turn can reduce stress, restore social order and eliminate "disruptive behavior."
因此綁條鐵鍊、舊輪胎，或鋪些乾草，對營群體生活的豬而言，可以讓生活更豐富、有意義，有社會序位，進而紓解壓力，避免它們「行為偏差」。