Effects of dietary vitamin E supplementation on reproductive performance and health indices of Arabian yellowfin seabream broodstock (Acanthopagrus arabicus)

IF 3.7 2区农林科学 Q1 FISHERIES

Aquaculture Reports Pub Date : 2025-02-21 DOI:10.1016/j.aqrep.2025.102710

Mojtaba Zabayeh Najafabadi , Hamid Mohammadiazarm , Mansour Torfi Mozanzadeh , Ali Shahriari

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Abstract

A 135-day study was conducted to investigate the effects of dietary vitamin E on the reproductive performance of Arabian yellowfin seabream (Acanthopagrus arabicus) broodstock. The experimental design utilized a basal diet containing 50 % crude protein and 18 % crude fat, supplemented with different concentrations of vitamin E (0, 25, 50, 100, 250, 500, and 1000 mg/kg). A total of 294 broodstock were distributed in twenty-one cylindrical polyethylene tanks (1.5 m³ each), maintaining a balanced sex ratio (1:1) and a salinity level of 40.2 ± 0.22 g/l. The fish were fed the experimental diets twice daily before and during the spawning period. The results indicated that dietary vitamin E did not significantly influence growth parameters. However, higher levels of vitamin E were observed in the liver, gonadal tissue, and larvae as a result of increased dietary intake. Notably, supplementation with 250 mg/kg of vitamin E significantly enhanced relative fecundity, spawning frequency, fertilization rate, egg production, and larval survival rate. Furthermore, lipid peroxidation was reduced at this concentration. These findings suggest that dietary supplementation of 250 mg/kg vitamin E is optimal for improving the reproductive performance of Arabian yellowfin seabream.

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饲料中添加维生素E对阿拉伯黄鳍鲷繁殖性能和健康指标的影响

本试验旨在研究饲料中维生素E对阿拉伯黄鳍鲷（Acanthopagrus arabicus）亲鱼繁殖性能的影响。试验设计采用含50% %粗蛋白质和18% %粗脂肪的基础饲粮，在基础饲粮中添加不同浓度的维生素E（0、25、50、100、250、500和1000 mg/kg）。共有294头亲鱼分布在21个圆柱形聚乙烯池中（每个池1.5 m³），保持平衡的性别比例（1:1），盐度水平为40.2 ± 0.22 g/l。在产卵前和产卵期间分别饲喂试验饲料，每日两次。结果表明，饲粮中维生素E对生长参数无显著影响。然而，在肝脏、性腺组织和幼虫中观察到较高水平的维生素E，这是饮食摄入量增加的结果。值得注意的是，添加250 mg/kg维生素E显著提高了相对繁殖力、产卵频率、受精率、产蛋量和幼虫存活率。此外，在该浓度下，脂质过氧化反应减少。由此可见，在饲料中添加250 mg/kg维生素E对提高阿拉伯黄鳍鲷的繁殖性能最为理想。

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来源期刊

Aquaculture Reports Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

5.90

自引率

8.10%

发文量

469

审稿时长

77 days

期刊介绍： Aquaculture Reports will publish original research papers and reviews documenting outstanding science with a regional context and focus, answering the need for high quality information on novel species, systems and regions in emerging areas of aquaculture research and development, such as integrated multi-trophic aquaculture, urban aquaculture, ornamental, unfed aquaculture, offshore aquaculture and others. Papers having industry research as priority and encompassing product development research or current industry practice are encouraged.