How much is enough? The amount of straw necessary to satisfy pigs’ need to perform exploratory behaviour

Since 10 years, EU-legislation states that ‘pigs must have permanent access to sufficient quantity of material to enable proper investigation and manipulation activities’. While much research has focused on which materials ‘enable proper investigation and manipulation activities’, little has been done to determine what constitutes ‘sufficient quantity’ and ‘permanent access’. Based on the hypothesis that […]

Effect of increasing amounts of straw on pigs’ explorative behaviour

According to European legislation, pigs must have permanent access to sufficient quantity of material to enable manipulation activities. However, few studies have quantified how much straw is needed to fulfil the requirements of growing pigs. We investigated the effect of increasing amount of straw on pigs’ manipulation of the straw, and hypothesised that after a […]