Li Yichao, Zhang Junming, Fu Bing, Xie Jun, Wang Guangjun, Tian Jingjing, Xia Yun, Yu Ermeng
Pearl River Fisheries Research Institute of CAFS, Guangzhou, China.
Key Laboratory of Aquatic Animal Immune Technology of Guangdong Province, Pearl River Fisheries Research Institute of CAFS, Guangzhou, China.
PeerJ. 2022 Mar 14;10:e13048. doi: 10.7717/peerj.13048. eCollection 2022.
Texture is one of the key quality attributes used in the fresh and processed fish industry to assess product quality and consumer acceptability. To improve the textural quality of tilapia, we formulated the expanded pellet diet (EPD) and pellet diet (PD), both containing faba bean (, FB) water extract, a previously reported potential aquafeed additive to increase flesh texture. The common diet was used as a control. After Nile tilapia () were fed three kinds of experimental diet for 120 days, muscle textural quality, growth parameters, oxidative response and immune parameters were analyzed. The results showed that there was no significant difference in the growth parameters between the three groups ( > 0.05). The highest measure of textural quality (hardness and chewiness) was found for the PD group, followed by the EPD and the control ( < 0.05). Less oxidative damage to the hepatopancreas and intestine was found in the EPD compared with the PD group, as demonstrated by the decreased levels of reactive oxygen species and increased levels of nicotinamide adenine dinucleotide and intestinal digestive enzyme activity (amylase and lipase). Taken together, this study highlights the potential usefulness in commercial settings of FB water extract for improving the textural quality of tilapia, and EPD containing faba bean water extract could be more advanced substitute for faba bean in tilapia culture in term of both effectiveness in textural quality improvement and health status enhancement compared with PD.
质地是鲜鱼和加工鱼行业用于评估产品质量和消费者接受度的关键质量属性之一。为了改善罗非鱼的质地品质，我们配制了膨化颗粒饲料（EPD）和颗粒饲料（PD），两者均含有蚕豆（FB）水提取物，这是一种先前报道的可增加鱼肉质地的潜在水产饲料添加剂。普通饲料用作对照。尼罗罗非鱼投喂三种实验饲料120天后，分析肌肉质地品质、生长参数、氧化反应和免疫参数。结果表明，三组之间的生长参数无显著差异（P>0.05）。PD组的质地品质（硬度和咀嚼性）测量值最高，其次是EPD组和对照组（P<0.05）。与PD组相比，EPD组对肝胰腺和肠道的氧化损伤较小，表现为活性氧水平降低、烟酰胺腺嘌呤二核苷酸水平升高以及肠道消化酶活性（淀粉酶和脂肪酶）增加。综上所述，本研究强调了FB水提取物在商业环境中改善罗非鱼质地品质的潜在用途，并且与PD相比，含有蚕豆水提取物的EPD在改善质地品质和增强健康状况方面可能是罗非鱼养殖中蚕豆更先进的替代品。
