Environmental different role as enrichment plays a pigs grow and age. For example, enrichment for growing pigs focuses mainly on reduction of boredom and stress, improvement of performance, and prevention of damaging behaviours, whereas enrichment for gestating sows focuses mostly on alleviating hunger-related stereotypic behaviours. This affects the preferences for the types of enrichment in pigs of different ages. More information is provided on the enrichment preferences for each phase of production.
