Abstract

The motivational component of rheoreaction has been determined in 4-month-old juvenile rainbow trout Oncorhynchus mykiss on different diets. It is shown that the diet increasing by 28% from the initial level reduces the motivation of fish to move downstream. During repeated (six times during 13 days) tests of individuals in the fishway installation, their rheoreaction does not change.

中文翻译：

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饮食变化对虹鳟幼体流变反应的影响

摘要

在四个月大的幼体虹鳟Oncorhynchus mykiss中，通过不同饮食确定了流变反应的动机成分。结果表明，日粮比初始水平增加了28％，降低了鱼向下游移动的动力。在对鱼道装置中的每个人进行重复（13天之内的六次）测试期间，其流变性不会改变。