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Gothe, R. (1994). [Tapeworms, a problem in equine practice?]. Tierarztl Prax, 22(5), 466–470.
Abstract: This paper gives a survey on biology and ecology of equine tapeworms as well as on pathogenesis, clinics, diagnosis, therapy, and prophylaxis of tapeworm infections.
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Straatsma, G., Samson, R. A., Olijnsma, T. W., Op Den Camp, H. J., Gerrits, J. P., & Van Griensven, L. J. (1994). Ecology of Thermophilic Fungi in Mushroom Compost, with Emphasis on Scytalidium thermophilum and Growth Stimulation of Agaricus bisporus Mycelium. Appl Environ Microbiol, 60(2), 454–458.
Abstract: Twenty-two species of thermophilic fungi were isolated from mushroom compost. Scytalidium thermophilum was present in the compost ingredients, fresh straw, horse droppings, and drainage from compost and dominated the fungal biota of compost after preparation. Of 34 species of thermophilic fungi tested, 9 promoted mycelial growth of Agaricus bisporus on sterilized compost: Chaetomium thermophilum, an unidentified Chaetomium sp., Malbranchea sulfurea, Myriococcum thermophilum, S. thermophilum, Stilbella thermophila, Thielavia terrestris, and two unidentified basidiomycetes. These species will be considered for future experiments on inoculation and more controlled preparation of compost.
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Gonyou, H. W. (1994). Why the study of animal behavior is associated with the animal welfare issue. J. Anim Sci., 72(8), 2171–2177.
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Walter, G., & Reisner, A. (1994). Student opinion formation on animal agriculture issues. J. Anim Sci., 72(6), 1654–1658.
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Minton, J. E. (1994). Function of the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system in models of acute stress in domestic farm animals. J. Anim Sci., 72(7), 1891–1898.
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Heyes CM. (1994). Reflections on self-recognition in primates. Anim. Behav., 47, 909.
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Sugiyama Y. (1994). Tool use by wild chimpanzees. Nature, 376, 327.
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Premack D, & Premack AJ. (1994). Levels of causal understanding in chimpanzees and children. Cognition, 50, 347.
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Bekoff, M. (1994). Cognitive Ethology and the Treatment of Non-Human Animals: How Mati'ers of Mind Inform Mati'ers of Welfare. Animal Welfare, 3, 75–96.
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Sappington, B. F., & Goldman, L. (1994). Discrimination learning and concept formation in the Arabian horse. J. Anim Sci., 72(12), 3080–3087.
Abstract: Discrimination learning and concept formation abilities were investigated in four mature Arabian horses. A series of two-choice discrimination problems were presented on stimulus panels that could open to allow access to food bowls. Selection of the correct stimulus resulted in food reinforcement, and an incorrect choice was not rewarded. The positions of the correct and incorrect stimuli were varied randomly during each test session, and the criterion for learning each problem was 85% correct for two consecutive sessions of 30 or 40 trials. Testing progressed through six discrimination problems. The first four were simple pattern discriminations, but the last two incorporated several different triangles as correct stimuli and thus involved the concept of triangularity. Two of the subjects successfully completed only simple pattern discriminations, one showed evidence of learning in the first concept problem, and one completed all six tests, including the two concept formation problems. The results demonstrate complex pattern discrimination ability in horses, and suggest that they may also have the ability to form and use concepts in problem solving.
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