Environmental enrichment in intensive production systems for farm animals [Elektronische Ressource] / presented by Dušanka Jordan

University of Hohenheim Faculty of Agricultural Sciences Institute of Farm Animal Ethology and Poultry Science Prof. Dr. Werner Bessei ENVIRONMENTAL ENRICHMENT IN INTENSIVE PRODUCTION SYSTEMS FOR FARM ANIMALS Doctoral Dissertation Submitted in fulfilment of the requirements for the degree “Doctor der Agrarwissenschaften” (Dr.sc.agr. / Ph.D. in Agricultural Sciences) to the Faculty of Agricultural Sciences presented by Dušanka JORDAN born in Ljubljana, Slovenia Stuttgart-Hohenheim, 2010 IIJordan, D. Environmental enrichment in intensive production systems for farm animals. Doc. Dissertation. Stuttgart-Hohenheim, Univ. of Hohenheim, Faculty of Animal Sciences, 2010 This thesis was accepted as a doctoral dissertation in fulfilment of the requirements for thedegree “Doktor der Agrarwissenschaft” by the Faculty of Agricultural Sciences at theUniversity of Hohenheim, Stuttgart, Germany on 26 May 2010. Date of oral examination: 2 June 2010 Examination committee: Supervisor and reviewer: Prof. Dr. Werner BESSEI University of Hohenheim, Faculty of AgriculturalSciences, Institute of Farm Animal Ethology andPoultry Science Co-supervisor and co-reviewer: Prof. Dr. Ivan ŠTUHEC University of Ljubljana, Biotechnical Faculty,Department of Animal Science Additional examiner: Dr. Klaus REITER Bayerische Landesanstalt für Landwirtschaft,Institut für Tierhaltung und Tierschutz Vice-Dean and Head of the Committee: Prof. Dr. rer. nat.