• 2001–2002: Postdoktorandin an der Veterinärmedizinischen Universität Wien für ein Projekt zur Beurteilung von Melkrobotern hinsichtlich ihrer Folgen für die Gesundheit und das Verhalten von Kühen

• 2002–2004: Freie Mitarbeiterin am Institut für Tierhaltung und Tierschutz der Veterinärmedizinischen Universität Wien, Leitung eines Projektes zur Herzfrequenzvariabilität bei Kühen

• 2005: Lehrerin (Jahrgangsstufen 1 – 10, alle Fächer) an einer „Zwergenschule“ in Bergsfjord, Norwegen

• Seit 2006: Wissenschaftliche Mitarbeiterin der Europäischen Akademie GmbH

Bücher

• Hagen, Kristin. 2001. The expression of emotions and learning in cattle. Abschlussarbeit zur Erlangung des Ph.D. an der University of Cambridge

• E. Rehbinder, M. Engelhard, K. Hagen, R. B. Jørgensen, R. Pardo Avellaneda, A. Schnieke, F. Thiele. 2009. Pharming. Promises and risks of biopharmaceuticals derived from genetically modified plants and animals. Springer-Verlag, Berlin

• M. Engelhard, K. Hagen, M. Boysen (Hrsg.) 2009. Genetic Engineering in Livestock. New Applications and Interdisciplinary Perspectives. Springer-Verlag, Berlin

• Margret Engelhard, Kristin Hagen, Felix Thiele (Hrsg.) 2007. Pharming. A New Branch of Biotechnology. Graue Reihe Nr. 43. Europäische Akademie. Bad Neuenahr-Ahrweiler

Artikel

• Hagen, Kristin; A. van der Sluijs; J. Spitzen; D.M. Broom. 2001. Interactions between cattle and people on city-centre commons in Cambridge, UK. Current Research in Applied Ethology, Band 403, 96–103. Darmstadt: KTBL

• Hagen, Kristin; D.M. Broom. 2003. Cattle discriminate between individual familiar herd members in a learning experiment. Applied Animal Behaviour Science 82, 13–28. Elsevier.

• Hagen, Kristin; D.M. Broom. 2004. Emotional reactions to learning in cattle. Applied Animal Behaviour Science 85, 203–213. Elsevier

• Hagen, Kristin; D. Lexer; R. Palme; J. Troxler; S. Waiblinger. 2004. Milking of Brown Swiss and Austrian Simmental cows in a herringbone parlour or an automatic milking unit. Applied Animal Behaviour Science 88, 209–225. Elsevier

• Lexer, D; K. Hagen; B. Vosika; J. Troxler; S. Waiblinger. 2004. Einfluss eines automatischen Melksystems auf Verhalten, Physiologie und Gesundheit von Milchkühen. Ländlicher Raum 1, 23–25. Wien: BMLFUW

• Lexer, D.; K. Hagen; F. Leisch; R. Palme; J. Troxler; S. Waiblinger. 2005. Time budgets, social behaviour and concentrations of cortisol metabolites in Austrian Simmental and Brown Swiss cows milked in a robot or a herringbone milking parlour. Current Research in Applied Ethology 2004, Band 437, 115–123. Darmstadt: KTBL

• Hagen, Kristin; J. Langbein; C. Schmied; D. Lexer; S. Waiblinger. 2005. Heart rate variability in dairy cows – influences of breed and milking system. Physiology & Behavior 85, 195–204. Elsevier

Buchrezension

• Hagen, Kristin. 2000. Recognizing the Intrinsic Value of Animals: Beyond Animal Welfare – M. Dol; M.F. van Vlissingen; S. Kasanmoentalib; T. Visser; H. Zwart. Anthrozoös 13, 126–127. Ashland: Purdue University Press

Tagungsbeiträge (Auswahl)

• Hagen, Kristin; D.M. Broom. 1999. Cattle can use individual familiar herd members as discriminative stimuli. In: Proc. of the 33rd Int. Congress of the International Society for Applied Ethology, 185. Ås: Agricultural University of Norway

• Hagen, Kristin; D.M. Broom. 1999. Cattle can use individual familiar herd members as discriminative stimuli. In: Proc. of the 33rd Int. Congress of the International Society for Applied Ethology, 185. Ås: Agricultural University of Norway

• Hagen, Kristin; D.M. Broom. 2000. Emotional reactions to learning in cattle. In: Proc. of the 34th Int. congress of the International Society for Applied Ethology, 79. Florianopolis: Laboratory of Applied Ethology, UFSC

• Hagen, Kristin; D.M. Broom. 2001. Emotion and successful learning in cattle. In: Consciousness, Cognition and Animal Welfare – Proc. of the Universities Federation of Animal Welfare symposium, Animal Welfare, 10S, 239. Hertfordshire: UFAW

• Hagen, Kristin; D. Lexer; R. Palme; J. Troxler; S. Waiblinger. 2003. Behaviour, heart rate and milk cortisol of Simmental and Brown Swiss cows during milking in a robotic system compared to a herringbone parlour. In: Proc. of the 37th Int. Congress of the International Society for Applied Ethology, 97. Brescia: Fondazione Iniziative Zooprofilattiche e Zootecniche

• Broom, D.M.; K. Hagen; K.R. Elliker. 2003. Cognitive ability in sheep and cattle. In: Contributions to the XXVIII International Ethological Congress, 62. Revista de Etologia Suplemento 5. São Paulo: Sociedade Brasileira de Etologia

• Hagen, Kristin. 2004. Inter-species knowledge and communication: Fulani pastoralists and their cattle. In: Proc. of the 2nd Second European Conference on Behavioural Biology, Groningen, The Netherlands

• Hagen, Kristin; J. Langbein; C. Schmied; D. Lexer; S. Waiblinger. 2004. Heart rate variability in dairy cows. In: Proc. of the 38th Int. Congress of the International Society for Applied Ethology. Helsinki: ISAE 2004, 62