Effects of spectral on growth, physiology, and growth axis gene expression in Plectropomus leopardus
文献类型： 外文期刊
作者： Fei, Fan 1 ; Cao, Shuquan 1 ; Li, Wensheng 2 ; Zhu, Zhiwen 1 ; Li, Wenyang 1 ; Gao, Xiaoqiang 1 ; Zhang, Xianhong 1 ; Sun, Yan 5 ; Zhang, Chuanxin 6 ; Liu, Baoliang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Shandong, Peoples R China
2.Ocean Univ China, Qingdao 266071, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Equipment & Informatizat Environm Controll, Hangzhou, Peoples R China
4.Laizhou Mingbo Aquat Prod Co Ltd, Laizhou 261400, Peoples R China
5.Foshan Elect & Lighting Co Ltd, Haikou 570100, Peoples R China
6.Wanbao Aquat Prod Co Ltd, Rizhao 276800, Peoples R China
关键词： Spectral composition; Growth performance; Digestive enzyme activity; Growth axis gene; Plectropomus leopardus
期刊名称：AQUACULTURE （ 影响因子：3.9； 五年影响因子：4.1 ）
ISSN： 0044-8486
年卷期： 2024 年 593 卷
页码：
收录情况： SCI
摘要： This study examined the effect of different spectral on the growth, feeding rate, digestion, and metabolism of Plectropomus leopardus in an industrial recirculating aquaculture system. All Plectropomus leopardus (wet weight 100 g +/- 0.45 g) were kept in triplicate tanks for 60 days under six different spectral full visual (400 to 800 nm), blue (450 nm), green (530 nm), yellow (590 nm), red (630 nm) spectrum, and dark. After the experiment, fish were weighed and sampled to obtain haemolymph, brain, and hepatopancreas tissues, which were used to analyze biochemical parameters and gene expression. The findings indicated that the group exposed to blue light demonstrated substantially elevated feeding rate, weight gain, specific growth rate, and reduced feed conversion ratios and visceral-somatic indexes compared to the other groups (p < 0.05). The blue light and full spectrum groups had considerably increased levels of digestive, metabolic, and antioxidant enzyme activity compared to the other groups (p < 0.05). The expression levels of GH, GHR, PACA, ADCY, IGF-I, IGF-IR, and IGFBP growth axis genes in the brain and liver were significantly higher in the blue light group than in the other groups (p < 0.05). The results indicate that spectral impact the growth, feeding rate, digestion, and metabolism of P. leopardus. This study revealed distinct spectra that enhanced the growth rate and increased the weight gain from feeding. Furthermore, the optimal spectral composition for recycling aquaculture of P. leopardus was clarified, thereby providing theoretical references for designing lighting strategies in indoor recycling aquaculture systems tailored to P. leopardus.
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