Enrichment satisfying specific behavioural needs in early-weaned pigs (1995)

Horrell, I., Ness, P. A.

Abstract

Pigs sniffed and nosed other pigs, belly-nosed, and chewed ears and tails less when they had access to a peat-filled rooting tray than in standard flat decks. A hanging rope was chewed more than artificial dogbones, which, in turn, received more attention than hanging chains.