Behavioral parameters of body weight regulation in the pigeon (Columba livia)

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Used the 24-hr periodicity of food intake as the unit of analysis for defining the characteristics of feeding behavior that account for the control of intake in the pigeon. In 5 Ss, feeding activity exhibited considerable fluctuations. In the morning, intake was low and exclusively in small bouts. Feeding was concentrated into the early afternoon period, distributed over a wide range of bout sizes, and tapered off toward the end of the day by decreasing bout size and bout frequency. Compensatory intake after food deprivation occurred mainly in single oversized bouts superimposed on normal hourly intake. Bout frequency was reduced because of elimination of smaller bouts. Data suggest that in the pigeon the mechanisms of intake control are decoupled from individual meals and intermeal intervals. This interpretation is discussed in relation to work on intake control in the rat. (34 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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