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Aquatic feed industry is one of the main factors in the development of aquaculture industry, providing strong support to meet the growing demand for aquatic products. As an important raw material in aquatic feed, lipid (especially fish oil) is easily oxidized due to its rich unsaturated fatty acids, and produces various hydroperoxides, secondary oxidation products (including alcohols, ketones, aldehydes, etc.). In addition, the oxidation process also leads to changes the oil chemical characteristics. In feed in‐ dustry and aquaculture, lipid oxidation could impair growth and health of fish. This paper summarizes the research on oil oxidation by scholars at home and abroad, discusses the effect and mechanism of oil oxidation on various kinds of fish and the application effect of common antioxidants, so as to accumulate basic data for further research on the effect of oxidized oil on aquatic animals. [ABSTRACT FROM AUTHOR]

Black soldier fly (Hermetia illucens, BSF) is a saprovorous insect native to South America. It has the characteristics of wide diet range, rapid growth, strong reproduction ability. Due to its rich pro tein content and balanced amino acid composition, BSF is considered as a source of new aquatic feed protein sources with great potential. It has been showed that as a source of feed ingredient, BSF products can partially or even completely replace fish meal or soybean meal in aquatic animal feed, and has a good application prospect in aquaculture industry. Currently, BSF is mainly added to the aquatic feed in the form of three protein raw materials: full-fat BSF larvae meal, defatted BSF larvae meal and pre-pupa meal. Due to the different nutritional characteristics, different BSF feed products and appropriate addition level should be selected for different breeding objects to obtain the best breeding results. This paper reviewed the biological characteristics, nutritional value, factors affecting its production and the latest progress in the application of different product types of BSF protein raw material in aquatic feed, and prospected the application prospect of BSF products as protein raw materials in aquatic feed, aiming to provide reference for its industrial application. [ABSTRACT FROM AUTHOR]