Table 2.

Definition of the recorded behaviors in the broilers.

Behavior	Definition
Eating	Birds were scored as eating when they pecked at the feed;
Drinking	Drinking when they were pecking at the drinkers and subsequently tilted their head back;
Standing	Birds were scored as standing when they were not moving and their body did not touch the floor;
Walking	Walking or running in a normal or nonaggressive manner, without exhibiting any other defined behavior;
Preening	Preening consisted of moving the beak over the feathers;
Stretching Sitting	One wing on the same side of the body is extended (half extended) and one leg is extended without moving; Elbows or chest were on the ground, with the head hanging on the neck motionless or swinging briefly to the ground.