Table 2.

List of activities, behaviors, and stereotypies observed and their respective description.

Activity, Behavior and Stereotypy			Description
Activity		Ruminating	Chewing regurgitated boluses of feed
		Eating feed at the feeding trough	Eating and masticating at the feeding trough
		Lying	Lying down in any resting position
		Standing idling	Standing
Behavior	Agonistic	Fighting	Engaging in headbutts
		Escaping	One young bull escaping from another hostile young bull
		Threatening	One young bull has a hostile behavior but no contact is made
	Non-agonistic	Chin-resting	One young bull places its chin on another young bull
		Grooming	One young bull licks another
		Sniffing	Sniffing another young bull
		Social rubbing	Rubbing another young bull
Stereotypy		Licking	Licking any equipment
		Rubbing	Rubbing repetitively own body against any equipment
		Tongue-rolling	Twisting and twirling the tongue, either inside or outside the open mouth, for at least 5 s