Effect of Exercise on Feed Consumption, Growth, Food Conversion, and Stamina of Brook Trout

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Abstract
This study compared the practical effects of rearing brook trout (Salvelinus fontinalis) in units either with or without water currents sufficient to force them to swim actively and continuously. After 10 weeks, exercised fish fed to satiation were heavier than both the unexercised fish fed to satiation and the exercised fish fed the same percentage body weight per day as unexercised fish. The unexercised fish and the exercised fish fed equal percentages of body weight showed no difference in final weight. Fish in both exercised groups had greater swimming stamina than unexercised fish at the end of the study. Food conversions for the exercised fish fed to satiation, the unexercised fish fed to satiation, and the exercised fish fed at equal percentages of body weight as unexercised fish were 1.54, 1.58, and 1.49, respectively.
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