Flavour preferences conditioned by protein solutions in post-weaning pigs

► Piglets were trained to drink flavoured (CS +) protein and flavoured (CS −) water. ► In choice tests they preferred CS + to CS − when presented in water or feed. ► Piglets also preferred CS + flavoured protein to unflavoured protein. ► Conditioned flavour preferences may be useful to reduce post-weaning anorexia.