Table 2.

Ethogram.

Behavior	Definition
Standing	The sow is standing, included kneeling
Sitting	The sow is sitting, contact between its bottom and the ground
Lying	The sow is either lying on her belly or laterally (accumulation of both lying behaviors below)
Sternal lie	The sow is lying on her sternum, udder completely or partially obscured under the sow
Lateral lie	The sow is lying on her side, both lines of teats not obscured
Drinker pressing/drinking	The snout of the sow is in contact with the drinker
Eating	The head of the sow is above the feeder, head down in the trough
Nursing	The sow is in a lateral recumbency and a minimum of three piglets are actively (head movements) touching the teat region