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Consumption (least square means + standard error) of kennelled dogs in front of 2 mM (a), 3 mM (b), 4 mM (c), and 6 mM (d) monosodium glutamate (MSG) and water solutions during a 20 min preference test according to the human-approach test results (close or distant) previously assigned (* p < 0.05; † p < 0.1).
