Striped catfish are one of the main aquaculture species in Asia. However, the low level of omega‐3 fatty acids in its body makes this species less attractive compared with marine fish. This study aimed to investigate the effect of different oils on growth performance, body composition, and fatty acids in striped catfish juveniles. A basal diet (T0) was formulated to contain no oil, while four other diets (T1, T2, T3, and T4) were supplemented at 4% with different oils, including salmon oil (SALO), soybean oil (SBO), linseed oil (LSO), and rapeseed oil (RSO). Catfish juveniles with initial body weight (23–24 g/fish) were randomly stocked in 500‐L fiberglass tanks, divided into five treatments, three replicates for each, and fed the experimental diets for 60 days. Results from this study revealed that fish fed the LSO‐supplemented diet had significantly (p < 0.05) improved whole body omega‐3 (alpha‐linoleic acid, 18:3n3) fatty acid levels (7.86%), total n‐3 fatty acids (9.12%), and higher growth than those fed the other diets. In conclusion, the findings suggest that linseed oil can be used to improve growth, omega‐3 fatty acid, C18:3–3 (ALA), and total n‐3 PUFA deposition in the whole body of striped catfish juveniles.

中文翻译：

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饲喂含有不同油源的饲料后，条纹鲶鱼幼鱼的生长、身体成分和脂肪酸成分得到改善

条纹鲶鱼是亚洲主要水产养殖品种之一。然而，其体内的 omega-3 脂肪酸含量较低，使得该物种与海鱼相比吸引力较差。本研究旨在研究不同油对条纹鲶鱼幼鱼生长性能、身体成分和脂肪酸的影响。基础日粮 (T0) 配制为不含油，而其他四种日粮 (T1、T2、T3 和 T4) 则添加 4% 的不同油，包括鲑鱼油 (SALO)、大豆油 (SBO)、亚麻籽油（LSO）和菜籽油（RSO）。将初始体重（23-24 g/条）的鲶鱼幼鱼随机饲养在500 L玻璃纤维池中，分为5个处理，每个处理3个重复，并饲喂实验饲料60天。这项研究的结果表明，喂食添加 LSO 的饲料的鱼具有显着的（p< 0.05) 改善了全身 omega-3（α-亚油酸，18:3n3）脂肪酸水平（7.86%）、总 n-3 脂肪酸（9.12%），并且比其他饮食喂养的人生长更快。总之，研究结果表明，亚麻籽油可用于改善条纹鲶鱼幼鱼全身的生长、omega-3 脂肪酸、C18:3-3 (ALA) 和总 n-3 PUFA 沉积。