1. Alterations in components of the pineal melatonin synthetic pathway by acute insulin stress in the rat and Syrian hamster;Champney;Brain Research,1985
2. Dantzer, R., Mormede, P., Henry, J., 1983. Physiological assessment of adaptation in farm animals. In: Baxter, S.H., Baxter, M.R., MacCormack, J.A.D. (Eds.), Farm Animal Housing and Welfare, Martinus Nijhoff, The Hague, pp. 8–19.
3. Engel, B.T., 1992. Traits of the therapeutic riding horse. In: Engel, B.T. (Ed.), Therapeutic Riding Programs Instruction and Rehabilitation, Barbara Engel Therapy Services, Durango, CO, pp. 82.
4. Evans, J.W., 1989. Horses, W.H. Freeman and Co., New York, p. 35.
5. Discrimination reversal learning in yearling horses;Fiske;J. Anim. Sci.,1979