Table 2.

Ethogram of the behaviours recorded during the anticipatory test [adapted from Doyle et al. (27)].

Behaviour	Definition
Lying	Sow is lying down ventrally or laterally
Sitting	Hindquarters on the ground, sternum elevated, head between two top bars
Standing	On all four feet, head between two overhead bars/in the centre of the crate
Head movements around the bars	Snout is above the feeder or between/above side rails surrounding the feeder and includes when lying down or suckling
Feeder interaction	Rubbing snout on feeder, biting feeder, pawing/climbing feeder
Frustrated behaviours	Head shake, stepping without changing location, bar biting, pawing, climbing, nosing repeatedly away from feeder
Drinking	Snout on nipple drinker
Urinate/defecate	Sow excretes urine or faeces
Suckling	Lying laterally with >70% of piglets at the udder