The aim to this study was to discuss the behaviourof pigs and the possibility of using that knowledge in the husbandry and production practice. Particular attention was paid to the relationship between welfare and behaviour of pigs.As it was shown, an effective way to prevent behavioural problems is to ensure that animals havethe materials that absorb their attentions. The use of so-called toys supports the reduction of violence and stress in the group. As shown pigs prefer edible toy having flavor and odor. The ability to read signals, connected with knowledge of their behaviour is a crucial diagnostic tool that alows for the optimal utilization of production capacities of individual technological groups.