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Taste is believed to be involved in the motivation of food acceptance through at least two psychological processes: (1) by influencing drive state (activity assodated with food seeking behavior), and (2) by contributing to the reinforcing value of a food. In animals having a normal urge to eat, sensory cues may be dispensed with, yet regulation of food intake compatible with life may still prevail. In many cases, however, it is necessary that domestic animals be “over fed” with respect to their calorie needs—in such cases motivation to eat becomes critical to the achievement of satisfactory production levels. The sense of taste has been studied in many of the domestic animals. Goatcher and Church (1970) has reported on the taste responses of sheep to compounds stimulatory to the sweet and salty taste modalities. The study reported herein was designed to provide data on the reactions of sheep to stimulants that evoke the sour and bitter taste sensations in man.
Goatcher et al. (Fri,) studied this question.