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Effects of supplemental ferulic acid (FA) on survival, growth performance, digestive enzyme activities, antioxidant capacity and lipid metabolism of large yellow croaker (Larimichthys crocea) larvae

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Abstract

A 30-day feeding trial was conducted to investigate the effects of supplemental ferulic acid (FA) on survival, growth performance, digestive enzyme activities, antioxidant capacity and lipid metabolism of the  large yellow croaker larvae (initial weight: 2.58 ± 0.30 mg). Four isonitrogenous and isolipidic micro-diets were formulated with graded levels of FA (0, 20, 40, and 80 mg/kg) and fed to the experimental larvae seven times daily. Results showed that larvae fed the diet with 40 mg/kg FA had significantly higher survival rate, while the specific growth rate was higher in larvae fed diets with 40 and 80 mg/kg FA than the control group (P < 0.05). Activities of trypsin in pancreatic segments (PS) and intestinal segments, lipase in PS and alkaline phosphatase in brush border membrane were significantly increased by supplementation of FA compared to the control group (P < 0.05). Supplementation of FA significantly increased activities of total superoxide dismutase and catalase, and reduced the malondialdehyde content compared to the control group (P < 0.05). Meanwhile, activities of lysozyme, total nitric oxide synthase and nitric oxide content were significantly improved by supplemental FA in diets. Furthermore, supplementation of 40 mg/kg FA reduced the triglyceride content in larval visceral mass probably through down-regulating expression of lipogenesis-related genes (scd1, fas and dgat2) and up-regulating expression of lipid catabolism-related genes (aco, cpt-1 and hl). In conclusion, appropriate supplementation of 40 mg/kg FA could improve the survival and growth performance of large yellow croaker larvae through increasing digestive function, antioxidant capacity and promoting lipid metabolism.

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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

This research was supported by the earmarked fund for CARS-47, Leading Talent of Technological Innovation of Ten-Thousands Talents Program (2018–29), and the Key Technology Research and Development Program of Shandong (CN) (2019JZZY010814).

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The authors’ contributions were as follows: Qinghui Ai and Kangsen Mai formulated the research question; Wenxuan Xu, Wenxing Huang, Chuanwei Yao, Yongtao Liu and Zhaoyang Yin designed the study and conducted the research; Wenxuan Xu analysed the data, interpreted the findings and wrote the article. All authors revised the article. We appreciated Wencong Lai, Xiufei Cao, Ye Gong, and Dan Xu for their help in revising the article.

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Correspondence to Qinghui Ai.

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All experiments in this study were in accordance with the Management Rule of Laboratory Animals (Chinese Order No. 676 of the State Council, revised 1 March 2017). The authors agree to collaborate and publish this article.

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Xu, W., Huang, W., Yao, C. et al. Effects of supplemental ferulic acid (FA) on survival, growth performance, digestive enzyme activities, antioxidant capacity and lipid metabolism of large yellow croaker (Larimichthys crocea) larvae. Fish Physiol Biochem 48, 1635–1648 (2022). https://doi.org/10.1007/s10695-022-01120-1

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  • DOI: https://doi.org/10.1007/s10695-022-01120-1

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