Effect of Plant-Derived and Microbial Feed Additives on the Growth Performance and Biochemical Composition of Juvenile Sea Cucumber Stichopus monotuberculatus

IF 3 2区农林科学 Q1 FISHERIES

Aquaculture Nutrition Pub Date : 2025-03-21 DOI:10.1155/anu/6521606

Jiayu Zhang, Chao Li, Yan Zhao, Yanchao Chai, Haiqing Wang

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Abstract

Low growth and survival rates (SRs) are common challenges confronted in cultivation of sea cucumbers, particularly during juvenile stage. Given the significance of feed components in aquaculture, it is essential to explore various additives in formulated feed for juvenile sea cucumber Stichopus monotuberculatus. In this study, juveniles were fed a basal diet supplemented with 500 mg/kg of tea powder, 100 mg/kg of allicin, 20 mL/kg of probiotics, and 100 mL/kg of earthworm hydrolysate (EH) over a 56-day feeding trial. The SRs, growth performance, nonspecific immunity, antioxidant activity, nutrient composition, and digestive activity of juveniles were evaluated. The results showed that all four feed additives positively affected the digestive ability of S. monotuberculatus. Tea powder, allicin, and probiotics in the diet significantly enhanced the growth performance of the juveniles, while EH exhibited a beneficial impact on the nutrient accumulation. Additionally, tea powder and allicin were found to enhance immune responses. Therefore, this study provided insights into how feed additives affect growth, digestibility, and immune responses in aquatic animals, offering valuable information for developing effective dietary strategies for tropical sea cucumbers.

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低生长率和低存活率（SRs）是海参养殖过程中面临的共同挑战，尤其是在幼参阶段。鉴于饲料成分在水产养殖中的重要性，有必要探索幼体海参配方饲料中的各种添加剂。本研究在为期 56 天的喂养试验中，给幼体喂食添加了 500 毫克/千克茶粉、100 毫克/千克大蒜素、20 毫升/千克益生菌和 100 毫升/千克蚯蚓水解物（EH）的基础日粮。对幼鱼的SRs、生长性能、非特异性免疫、抗氧化活性、营养成分和消化活性进行了评估。结果表明，所有四种饲料添加剂都对单瘤梭子蟹的消化能力有积极影响。日粮中的茶粉、大蒜素和益生菌显著提高了幼鱼的生长性能，而 EH 则对营养物质的积累产生了有益的影响。此外，研究还发现茶粉和大蒜素能增强免疫反应。因此，这项研究深入探讨了饲料添加剂如何影响水生动物的生长、消化率和免疫反应，为制定热带海参的有效膳食策略提供了宝贵的信息。

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来源期刊

Aquaculture Nutrition 农林科学-渔业

CiteScore

7.20

自引率

8.60%

发文量

131

审稿时长

3 months

期刊介绍： Aquaculture Nutrition is published on a bimonthly basis, providing a global perspective on the nutrition of all cultivated aquatic animals. Topics range from extensive aquaculture to laboratory studies of nutritional biochemistry and physiology. The Journal specifically seeks to improve our understanding of the nutrition of aquacultured species through the provision of an international forum for the presentation of reviews and original research papers. Aquaculture Nutrition publishes papers which strive to: increase basic knowledge of the nutrition of aquacultured species and elevate the standards of published aquaculture nutrition research. improve understanding of the relationships between nutrition and the environmental impact of aquaculture. increase understanding of the relationships between nutrition and processing, product quality, and the consumer. help aquaculturalists improve their management and understanding of the complex discipline of nutrition. help the aquaculture feed industry by providing a focus for relevant information, techniques, tools and concepts.