Effects of Rotifers Enriched With Different Enhancement Products on Larval Performance and Jaw Deformity of Golden Pompano Larvae Trachinotus ovatus (Linnaeus, 1758)

文献类型： 外文期刊

第一作者： Fu, Zhengyi

作者： Fu, Zhengyi;Yang, Rui;Zhou, Shengjie;Ma, Zhenhua;Fu, Zhengyi;Yang, Rui;Zhou, Shengjie;Ma, Zhenhua;Fu, Zhengyi;Yang, Rui;Zhou, Shengjie;Ma, Zhenhua;Zhang, Tao

作者机构：

关键词： enrichment; larvae rearing; growth; survival; deformity; fatty acids; gene expression

期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：4.912； 五年影响因子：5.125 ）

ISSN：

年卷期： 2021 年 7 卷

页码：

收录情况： SCI

摘要： This study evaluated the effects of rotifers enriched with three enhancement products (Nannochloropsis, S.presso, and Algamac 3080) on the body fatty acid composition, growth, survival, jaw deformity, and bone development-related gene expression of the golden pompano larvae. The rotifers enriched with Nannochloropsis were rich in EPA, and the rotifers enriched with S.presso and Algamac 3080 were rich in docosahexaenoic acid (DHA). The level of DHA in Algamac 3080 is higher than that in S.presso. The first feeding started at 3 DPH, and data were collected at 8 DPH. The results showed that the body fatty acid composition of the larvae was basically the same as that of the feeding rotifers. The specific growth rate of S.presso and Algamac 3080 treatment was significantly higher than the un-enriched treatment (P < 0.05). The survival rate of Algamac 3080 treatment was significantly lower than the other treatments (P < 0.05), and the jaw deformity rate of S.presso treatment was significantly lower than the Nannochloropsis and un-enriched treatment (P < 0.05). The expression level of BMP2 and BMP4 in golden pompano larvae were not significantly affected by the enhancement products (P > 0.05), and the expression level of RXRa decreased significantly in the S.presso and Algamac 3080 treatment (P < 0.05). This study indicates that S.presso was an enhancement product more suitable for rotifers for golden pompano larvae. This study provided reliable reference and guidance for the first feeding of golden pompano larvae and also provided more reference data for the study of the mechanism of diet on larval fish bone deformity.

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