Exogenous enzymes, including protease, lipase, carbohydrate enzyme and phytase, are widely used as additives in fish feed worldwide. The chemical effects of these enzymes are well understood; however, their benefits to fish remain controversial. This review aimed to explore the current state of knowledge on the impacts of exogenous enzymes on finfish aquaculture, and demonstrate the application of exogenous enzymes as a safe and efficient bio‐additive to regulate growth performance, digestibility, feed utilization, whole‐body composition and immune performance of fish, and reduce phosphorus pollution into environment. Overall, based on the current knowledge and information gathered in this review, it is clear that the research on exogenous enzyme supplementation in finfish aquaculture is not extensive. It may be significant to increase research on this subject in future because it could broaden the application of exogenous enzyme use in diets where they cannot be applied currently.

中文翻译：

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外源酶在有鳍鱼养殖中作为功能性添加剂

外源性酶，包括蛋白酶、脂肪酶、碳水化合物酶和植酸酶，在世界范围内广泛用作鱼饲料的添加剂。这些酶的化学作用是众所周知的。然而，它们对鱼类的好处仍然存在争议。本综述旨在探讨外源酶对有鳍鱼养殖影响的当前知识状态，并证明外源酶作为一种安全有效的生物添加剂来调节生长性能、消化率、饲料利用、全身成分和提高鱼类的免疫性能，减少磷对环境的污染。总体而言，根据本综述目前收集到的知识和信息，很明显，对有鳍鱼养殖中外源酶补充的研究并不广泛。