The effect of sweet stimuli on oral behaviour in the chicken

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Abstract
The oral behaviour of the chicken was investigated in response to a variety of concentrations of fructose, sucrose and carboxymethylcellulose solutions. Both fructose and sucrose produced a similar increase in beak and tongue movements whereas an equivalent increase was only elicited by carboxymethylcellulose at much higher viscosities. An increase in head shaking behaviour only occurred when the birds were stimulated with sucrose solutions. Increases in beak wiping behaviour occurred only with sucrose and carboxymethylcellulose solutions. It was concluded that no single characteristic of the stimulus chemical was responsible for all the different behaviours shown.

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