Effects of environmental enrichment on behavioral responses to novelty, learning, and memory, and the circadian rhythm in cortisol in growing pigs

Physiology and Behavior - Tập 68 Số 4 - Trang 571-578 - 2000
I.C. de Jong1,2, Ina T Prelle1, J VANDEBURGWAL2, E. Lambooij2, S. Mechiel Korte2, H.J. Blokhuis2, J KOOLHAAS1
1Department of Animal Physiology, University of Groningen, P.O. Box 14, 9750 AA Haren, The Netherlands
2Institute for Animal Science and Health, Department of Behaviour, Stress Physiology and Management, P.O. Box 65, 8200 AB Lelystad, The Netherlands

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