Feeding Behavior in Chicks Given the Same Diet Simultaneously by Two Feeders-Right- and Left-Handed Chicks-:—Right- and Left-Handed Chicks—

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Choice feeding has been used to compare likes or dislikes of feedstuff for animals. In the two-choice preference test, it is expected that chicks eat their diets equally from two feeders when they were given the diets with the same palatability. The present experiment was conducted to make sure whether this basic principle is true or not in the short-term choice feeding. When chicks were given the same diet by two feeders, they ate the diet predominantly from one or the other of two feeders for a certain time. Half of chicks ate the diet from right feeders (right-handed chicks) and the other from left feeders (left-handed chicks) so that feed intake from right and left feeders was the same. These results indicated that the favorite feeder position was not confined to one side. Chicks given the choice between diets with the same nutritive value (added with or without 1% cholesterol) did not show the special preference or aversion to cholesterol, and they initially ate the diet from particular feeders, regardless of the presence or absence of cholesterol. Such undesirable feeding behavior in the choice feeding disappeared as the experiment progressed, or by using older chicks or the acclimation to the choice feeding prior to the experiment.
日本家禽学会の論文