Essay: Decreasing stress, aggression and injury in pigs housed in intensive production systems

Introduction
Animal welfare issues are inherent in any intensive production system that restricts animals to an environment incompatible with their behavioural needs (D’Eath & Turner, 2009). For example, intensive husbandry practices, such as a mix of pigs in a confined space, can result in significant stress reactions and displays of aggressive behaviour through frustration or restriction of natural behaviour (Guy et al., 2009; Yonezawa et al., 2009). This paper will discuss the use of pig-appeasing pheromone (PAP) to reduce aggression and social stress generally, and the importance of tail posture in predicting incidents of tail-biting injury in post-weaning piglets.
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