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Frustration and aggression in the domestic fowl
Authors:I J Duncan  D G Wood-Gush
Affiliation:1. Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, La Pintana, Santiago, Chile;2. Instituto de Ciencia Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile;1. Workplace of Applied Ethology and Professional Ethics, Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, Košice 04181 Slovakia;2. University Veterinary Hospital, Clinic of Birds, Exotic and Free Living Animals, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, Košice 04181, Slovakia;1. College of Computer and Information, Hohai University, Nanjing 211100, PR China;2. School of Information Engineering, Nanjing Audit University, Nanjing 211815, PR China;3. School of Computer Engineering, Nanjing Institute of Technology, Nanjing 211167, PR China;1. Department of Psychological Science, Northern Kentucky University, Highland Heights, KY 41099, USA;2. Department of Psychology, University of Kentucky, Lexington, KY 40536, USA;3. Department of Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40536, USA;4. Department of Neurosciences, Medical University of South Carolina, Charleston, SC 29425, USA;5. Center for Drug Abuse Research Translation, University of Kentucky, Lexington, KY 40536, USA
Abstract:Four experiments are described in which adult Brown Leghorn fowls were deprived of food and then frustrated by presenting food under a Perspex cover. The effects of this treatment on the aggressive behaviour of the birds is described.The results show that: (1) frustration causes a large increase in four indices of aggression in hens; (2) with any pair of hens only one shows an increase in aggressiveness; (3) aggression is elicited with repeated exposure to frustration; (4) hens which are dominant in one situation and submissive in another show an increase in aggression only when they are dominant; (5) when frustrated, cockerels shown a large increase in overt aggression towards hens which they usually dominante passively; and (6) aggression following frustration increases with food deprivation time preceding frustration.
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