Improved growth, body composition, and fatty acid composition in striped catfish juveniles, Pangasianodon hypophthalmus, fed with diets containing different oil sources

IF 2.3 3区 农林科学 Q2 FISHERIES
Nguyen Van Nguyen, Pham Nhu Hao, Pham Duy Hai, Le Thanh Hung
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Abstract

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.

用含不同油源的日粮喂养带鱼幼鱼,可改善其生长、体成分和脂肪酸组成
带鱼是亚洲的主要水产养殖品种之一。然而,由于带鱼体内的欧米伽-3 脂肪酸含量较低,因此与海水鱼相比,带鱼的吸引力较小。本研究旨在调查不同油脂对带鱼幼鱼生长性能、身体成分和脂肪酸的影响。基础日粮(T0)不含油,其他四种日粮(T1、T2、T3 和 T4)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 克/尾)的鲶鱼幼鱼随机放养在 500 升的玻璃钢水箱中,分为五个处理,每个处理三个重复,并喂食实验日粮 60 天。研究结果表明,与喂养其他日粮的鱼类相比,喂养添加 LSO 的日粮的鱼类全身欧米加-3(α-亚油酸,18:3n3)脂肪酸含量(7.86%)、总 n-3 脂肪酸含量(9.12%)显著提高(p < 0.05),生长速度也更快。总之,研究结果表明,亚麻籽油可用于改善带鱼幼鱼的生长、ω-3 脂肪酸、C18:3-3(ALA)和总 n-3 PUFA 在全身的沉积。
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来源期刊
CiteScore
5.90
自引率
7.10%
发文量
69
审稿时长
2 months
期刊介绍: The Journal of the World Aquaculture Society is an international scientific journal publishing original research on the culture of aquatic plants and animals including: Nutrition; Disease; Genetics and breeding; Physiology; Environmental quality; Culture systems engineering; Husbandry practices; Economics and marketing.
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