In organic pig production, natural behaviour is stimulated by e.g. feeding pigs with roughages. Provision of roughages stimulates foraging behaviour and positive experiences in pigs, and improves gut health. Additionally, farmers increase sustainability by using locally produced feeds with a lower environmental impact. To optimise the usage of roughages, organic pigs must keep the urge to root and eat roughages, and persistently utilize roughages. However, organic pigs are selected for fast growth based on eating concentrates and living indoors, as in the conventional production. Todays organic pig could benefit from breeding considering natural foraging behaviour of the pig, enabling positive welfare. Yet, such a positive welfare trait does not exist. In WelBredPOrg we will investigate the possibility to breed for traits related to pigs motivation for performing rooting behaviour and ingesting roughages. The project will take the much needed step for this by 1) developing and validating an automated methods to measure and document pigs interest for roughages, 2) investigate how this trait relates to other known welfare indicators and 3) explore the selection potential through monitoring the trait in large scale using 4800 organic growers with known pedigree. www.orgprints.org