Results

Weighing

• The hatchery (HC) group was significantly lighter than the control (CC) group on Day 1
• No significant weight differences between the groups after Day 1

Blood plasma corticosterone

• No significant effects of regrouping
• No significant differences between the groups

Tonic immobility

• Righting times were significantly shorter in the CC group after transportation (left image)
• First beep times were significantly shorter in the CC group after transportation, as well as significantly longer before transportation compared to the HC group (right image)
• The number of induction attempts and the first voluntary head movement times did not show any significant differences between the groups or effects of transportation.

Behavioral observations

• The table shows percentages of occurrence of the behavior over the observation period
• Severe feather pecking occurred observably more often in the HC group compared to the CC group before, as well as immediately after the regrouping.