The effect of feeding regime and the provision of a foraging substrate on the development of behaviours in group-housed sows (1994)

Burbidge, J. A., Spoolder, H. A. M., Lawrence, A. B. et al.

Abstract

The inability to appropriately express this [foraging] behaviour under certain conditions may result in the development of abnormal oral activities. Gilts utilised straw as a foraging substrate instead of directing oral activities at other components of the pen.