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

Autor: Efatpanah I; Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran., Falahatkar B; Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran.; Department of Marine Sciences, The Caspian Sea Basin Research Center, University of Guilan, Rasht, Guilan, Iran., Sajjadi MM; Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran., Monsef Shokri M; International Sturgeon Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran.
Jazyk: angličtina
Zdroj: Aquaculture nutrition [Aquac Nutr] 2024 May 13; Vol. 2024, pp. 6975546. Date of Electronic Publication: 2024 May 13 (Print Publication: 2024).
DOI: 10.1155/2024/6975546
Abstrakt: 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 ( ω 9), and monounsaturated fatty acids (MUFA), while saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) ( ω 3 +  ω 6) 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), ω 3, DHA + EPA, and the n3/n6 ratio, all registering the highest percentages. Conversely, MUFA, ω 6, and the DHA/EPA ratio displayed the lowest percentages ( P   < 0.05). Moreover, larvae fed with Artemia exhibited higher levels of ω 6, PUFA ( ω 3 +  ω 6), 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.
Competing Interests: The authors declare that they have no conflicts of interest.
(Copyright © 2024 Iraj Efatpanah et al.)
Databáze: MEDLINE
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