Chen Mingshi, Liu Yang, Bao Xiaoxue, Yue Yuhua, Tong Binbin, Yang Xionghui, Yu Hui, Yang Ying, Liu Yuhong, Yu Yingying
Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China.
Sinopharm Group Dezhong (Foshan) Pharmaceutical Co., Ltd., Foshan 528225, China.
Aquac Nutr. 2023 May 17;2023:9983499. doi: 10.1155/2023/9983499. eCollection 2023.
Chinese yam ( Turczaninow) by-product produced in the water extraction process is commonly directly discarded resulting in a waste of resources and environmental pollution. However, the value of Chinese yam by-product which still contains effective ingredients is far from being fully realized; hence, it has the potential to be a safe and effective feed additive in aquaculture. To investigate the impacts of Chinese yam by-product on growth performance, antioxidant ability, histomorphology, and intestinal microbiota of , juvenile fish (initial weight 13.16 ± 0.05 g) were fed diets supplemented with 0% (control), 0.1% (S1), 0.4% (S2), and 1.6% (S3) of Chinese yam by-product for 60 days. The results showed that no significant difference was found in weight gain, specific growth rate, and survival among all the experimental groups ( > 0.05). Feed conversion ratios of the S1 and S3 groups were significantly lower than those in the control group ( < 0.05). SOD activity of the S3 group and GSH contents of Chinese yam by-product groups were significantly higher than those in the control group ( < 0.05). MDA levels of the S2 and S3 groups were significantly lower than those in the control group and the S1 group ( < 0.05). Besides, Chinese yam by-product could protect liver and intestine health, as well as increase the abundance of beneficial bacteria and decrease the abundance of potential pathogens. This study suggests that Chinese yam by-product has the potential to be used as a functional feed additive in aquaculture, providing a reference for efficient recovery and utilization of by-products from plant sources during processing and culturing high-quality aquatic products.
在水提取过程中产生的山药（薯蓣属）副产品通常被直接丢弃，导致资源浪费和环境污染。然而，仍含有有效成分的山药副产品的价值远未得到充分认识；因此，它有潜力成为水产养殖中一种安全有效的饲料添加剂。为了研究山药副产品对幼鱼生长性能、抗氧化能力、组织形态学和肠道微生物群的影响，对初始体重为13.16±0.05克的幼鱼投喂添加了0%（对照组）、0.1%（S1）、0.4%（S2）和1.6%（S3）山药副产品的饲料，为期60天。结果表明，所有实验组在体重增加、特定生长率和存活率方面均未发现显著差异（P>0.05）。S1组和S3组的饲料转化率显著低于对照组（P<0.05）。S3组的超氧化物歧化酶（SOD）活性和山药副产品组的谷胱甘肽（GSH）含量显著高于对照组（P<0.05）。S2组和S3组的丙二醛（MDA）水平显著低于对照组和S1组（P<0.05）。此外，山药副产品可以保护肝脏和肠道健康，还能增加有益菌的丰度并降低潜在病原体的丰度。本研究表明，山药副产品有潜力用作水产养殖中的功能性饲料添加剂，为植物源副产品在加工和养殖优质水产品过程中的高效回收利用提供参考。
