Journal of Veterinary Behavior: Clinical Applications and Research Behavior as welfare indicator for the rearing of broilers in an enriched husbandry environment—A field study  Shana Bergmann, Angela Schwarzer, Katharina Wilutzky, Helen Louton, Josef Bachmeier, Paul Schmidt, Michael Erhard, Elke Rauch  Journal of Veterinary Behavior: Clinical Applications and Research  Volume 19, Pages 90-101 (May 2017) DOI: 10.1016/j.jveb.2017.03.003 Copyright © 2017 The Authors Terms and Conditions

Figure 1 (A) Photographic and (B) schematic illustration (not true to scale) of the equipment inside the alternative barn with perches, straw bales, pecking stones, feeding pans, and nipple drinkers, openings to the roofed outside run on each side of the barn and video observation devices. Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions

Figure 2 Photographic illustration of the roofed outside run usage by Cobb Sasso broilers on day 36 (photo: S. Bergmann). Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions

Figure 3 Diagram showing the odds ratios for every behavior pattern in the course of time of the performed and summarized rearing periods (n = 6 for Cobb Sasso enriched [farm 1], n = 2 for Ross 308 enriched [farm 1], and n = 6 for Ross 308 conventional [farm 2]). Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions

Figure 4 (A) Screenshot from the video recordings of the conventionally reared Ross 308 chicks during the first days of life. (B) Screenshot from the video recordings of the straw bale usage by Cobb Sasso chicks (screenshots: K. Wilutzky). (C) Screenshot from the video recordings of the conventionally reared Ross 308 chicks at the age of 16 days. (D) Screenshot from the video recordings of the straw bale usage of Cobb Sasso chicks at the age of 16 days. Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions

Figure 5 Percentage of birds using the provided straw bales as shelter in the course of the rearing on days 2, 9, 16, 23, 30, and 37 (day 37 only Cobb Sasso). All performed rearing periods (n = 6 for Cobb Sasso enriched and n = 2 for Ross 308 enriched) are summarized. n.s., not significant. Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions

Figure 6 Percentage of birds using the provided straw bales as elevated areas in the course of the rearing on days 2, 9, 16, 23, 30, and 37 (day 37 only Cobb Sasso). All performed rearing periods (n = 6 for Cobb Sasso enriched and n = 2 for Ross 308 enriched) are summarized. n.s., not significant. Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions

Figure 7 Percentage of birds using the provided perches in the course of the rearing on days 2, 9, 16, 23, 30, and 37 (day 37 only Cobb Sasso). All performed rearing periods (n = 6 for Cobb Sasso enriched and n = 2 for Ross 308 enriched) are summarized. n.s., not significant. Journal of Veterinary Behavior: Clinical Applications and Research 2017 19, 90-101DOI: (10.1016/j.jveb.2017.03.003) Copyright © 2017 The Authors Terms and Conditions