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Aureli, F., & de Waal, F. B. (1997). Inhibition of social behavior in chimpanzees under high-density conditions. Am. J. Primatol., 41(3), 213–228.
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Dixon, G., Green, L. E., & Nicol, C. J. (2006). Effect of diet change on the behavior of chicks of an egg-laying strain. J Appl Anim Welf Sci, 9(1), 41–58.
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Grandin, T. (1999). Safe handling of large animals. Occup Med, 14(2), 195–212.
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Nicol, C. J., Brown, S. N., Glen, E., Pope, S. J., Short, F. J., Warriss, P. D., et al. (2006). Effects of stocking density, flock size and management on the welfare of laying hens in single-tier aviaries. Br Poult Sci, 47(2), 135–146.
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