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鱼类能量收支各组分的准确测定，是鱼类能量学和鱼类营养学的重要研究内容。能量收支式可表示为：C—F＋U＋G＋R，式中C为食物能，F为排粪能，U为排泄能，G为生长能，R为代谢能。通常C、EUG可由生长实验直接测定，而R的测定要困难得多。一种方法是采用耗氧法（呼吸试验），由于
Accurate determination of the components of fish’s energy budget is an important study of fish energy and fish nutrition. Energy balance can be expressed as: C-F + U + G + R, where C is food energy, F is fecal energy, U is excretion energy, G is growth energy, R is metabolic energy. Usually C, EUG can be directly determined by the growth experiment, and the determination of R is much more difficult. One way is to use the Oxygen method (breath test), since