Effects of different diets on fatty acid composition and nutritional values of largemouth bass (Micropterus salmoides)

文献类型： 外文期刊

第一作者： Zou, Jianmin

作者： Zou, Jianmin;Song, Chao;Hu, Gengdong;Qiu, Liping;Chen, Jiazhang;Zhong, Liqiang

作者机构：

关键词： fatty acids; formulated feed; frozen trash fish; largemouth bass

期刊名称：AQUACULTURE RESEARCH （ 影响因子：2.184； 五年影响因子：2.447 ）

ISSN： 1355-557X

年卷期： 2022 年 53 卷 6 期

页码：

收录情况： SCI

摘要： This study investigated the effects of different diets (formulated feed, frozen trash fish and conversion of two diets) on fatty acid composition of largemouth bass Micropterus salmoides. A total of 184 food-size individuals were collected from 21 commercial largemouth bass ponds. In all samples, thirty-two fatty acids were detected, and five fatty acids (C14:0, C16:0, C18:1n9c, C18:2n6c, C20:5n3 and C22:6n3) were major, which accounted for 75% of the total fatty acid content. There was a positive correlation between the fatty acid composition in diets and fillet. Significant differences were detected in the fatty acid composition of largemouth bass between frozen trash fish group and formulated feed group. Statistical analyses revealed that 17 fatty acids, including DHA (Docosahexaenoic Acid), were highly significantly different between three diet groups (p < 0.01). The levels of omega-3 PUFAs (Polyunsaturated fatty acid), omega-6/omega-3 PUFAs ratio, and S: M: P ratios of frozen trash fish group were significantly higher than formulated feed group. These results could provide theoretical basis for the transformation and upgrading of diets for largemouth bass and have important significance for promoting healthy and sustainable aquaculture methods.

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