The Effect of Feeding with Chironomid and Artemia on Fatty Acids and Amino Acids Profiles in Persian Sturgeon (Acipenser persicus) Larvae

IF 3 2区农林科学 Q1 FISHERIES

Aquaculture Nutrition Pub Date : 2024-05-13 DOI:10.1155/2024/6975546

Iraj Efatpanah, Bahram Falahatkar, Mir Masoud Sajjadi, Maryam Monsef Shokri

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Abstract

This study aimed to examine the effect of various live foods on the fatty acids (FAs) and amino acids (AAs) profiles in Persian sturgeon (Acipenser persicus) larvae. One thousand and two hundred larvae were cultured in circular concrete tanks, and four treatments were administered as: (1) Artemia + Daphnia, (2) Artemia, (3) Artemia + Chironomid, and (4) Chironomid. Each treatment was considered as three replicates over an 11-day period. At the end of the experiment, treatment 1 (Artemia + Daphnia) showed the highest average weight of larvae, and the lowest weight was observed in treatment 4 (Chironomid). Survival rate ranged from 83.84% to 88.86% and no significant difference was observed among the groups (P > 0.05). Among Artemia-fed larvae, the predominant FAs were docosahexaenoic acid (DHA), oleic acid (ω9), and monounsaturated fatty acids (MUFA), while saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) (ω3 + ω6) were present in a lesser proportion (P < 0.05). In larvae fed with Artemia and Daphnia, the predominant proportions were observed in SFAs, eicosapentaenoic acid (EPA), ω3, DHA + EPA, and the n3/n6 ratio, all registering the highest percentages. Conversely, MUFA, ω6, and the DHA/EPA ratio displayed the lowest percentages (P < 0.05). Moreover, larvae fed with Artemia exhibited higher levels of ω6, PUFA (ω3 + ω6), and DHA/EPA ratio. In contrast, larvae fed with Chironomid showed lower levels of EPA, DHA + EPA, and n3/n6 ratio (P < 0.05). Among larvae fed with Chironomid, solely the DHA/EPA ratio exhibited a higher value compared to larvae fed with Artemia and Daphnia (P < 0.05). The amount of leucine in fish fed Artemia + Daphnia was more than the other treatments (P < 0.05). This study revealed a significant difference in amino acids composition among various live foods (P < 0.05), but no significant difference in AAs was observed in the body of Persian sturgeon larvae (P > 0.05). The results of this study suggest that the Persian sturgeon larvae possess the ability to maintain a balanced state of AAs. It is also evident that the FA profile of different live foods can affect the overall FA levels in the body of Persian sturgeon larvae, ultimately contributing to the enhancement of fish survival rate and growth.

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投喂摇蚊和蒿鱼对波斯鲟（Acipenser persicus）幼体脂肪酸和氨基酸谱的影响

本研究旨在考察各种活体食物对波斯鲟（Acipenser persicus）幼体脂肪酸（FAs）和氨基酸（AAs）含量的影响。将一千二百条幼体放入圆形混凝土池中养殖，并进行了以下四种处理：(1) 鯷+水蚤；(2) 鯷；(3) 鯷+摇蚊；(4) 摇蚊。每个处理设三个重复，为期 11 天。实验结束时，处理 1（蒿 + 水蚤）的幼虫平均重量最高，处理 4（摇蚊）的幼虫平均重量最低。存活率为 83.84% 至 88.86%，各组间无显著差异（P>0.05）。在投喂蒿子的幼虫中，主要的脂肪酸为二十二碳六烯酸（DHA）、油酸（ω9）和单不饱和脂肪酸（MUFA），而饱和脂肪酸（SFA）和多不饱和脂肪酸（PUFA）（ω3 + ω6）所占比例较小（P 0.05）。这项研究结果表明，波斯鲟幼体具有维持 AA 平衡状态的能力。不同活体食物中的脂肪酸含量也会影响波斯鲟幼鱼体内的整体脂肪酸含量，最终有助于提高鱼类的存活率和生长速度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.

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