Nest building and posture changes and activity budget of gilts housed in pens and crates

In conclusion, provision of a similar amount of straw does not compensate for the lack of space in the crate compared to the pens. Sows in pens spent more time nest building from 4 to 12 h post partum compared to crated sows, and crated sows showed more behaviours related to frustration and restlessness.