Effects of tea polyphenols on the growth performance, carbohydrate metabolism of grass carp ( Ctenopharyngodon idellus )

Aquaculture NutritionVolume 27, Issue 6 p. 2344-2354 ORIGINAL ARTICLE Effects of tea polyphenols on the growth performance, carbohydrate metabolism of grass carp (Ctenopharyngodon idellus) Dingding Yue, Dingding Yue College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorShaungjie Huang, Shaungjie Huang College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorRuiyi Yang, Ruiyi Yang Department of Food and Nutritional Science,College of Medicine, Macau University of Science and Technology, Macau, ChinaSearch for more papers by this authorYuning Sun, Yuning Sun College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorMuhammad Rizwan, Muhammad Rizwan College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorShouqi Xie, Shouqi Xie State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, ChinaSearch for more papers by this authorXiaochun Wan, Xiaochun Wan State Key Laboratory of Tea Plant Biology and Utilization / International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorRui Wang, Rui Wang College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorYanou Yang, Corresponding Author Yanou Yang cdyyo@126.com College of Animal Science and Technology, Anhui Agricultural University, Hefei, China Correspondence Yanou Yang, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, Anhui 230036, China. Email: yangyanou@ahau.edu.cnSearch for more papers by this author Dingding Yue, Dingding Yue College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorShaungjie Huang, Shaungjie Huang College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorRuiyi Yang, Ruiyi Yang Department of Food and Nutritional Science,College of Medicine, Macau University of Science and Technology, Macau, ChinaSearch for more papers by this authorYuning Sun, Yuning Sun College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorMuhammad Rizwan, Muhammad Rizwan College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorShouqi Xie, Shouqi Xie State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, ChinaSearch for more papers by this authorXiaochun Wan, Xiaochun Wan State Key Laboratory of Tea Plant Biology and Utilization / International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorRui Wang, Rui Wang College of Animal Science and Technology, Anhui Agricultural University, Hefei, ChinaSearch for more papers by this authorYanou Yang, Corresponding Author Yanou Yang cdyyo@126.com College of Animal Science and Technology, Anhui Agricultural University, Hefei, China Correspondence Yanou Yang, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, Anhui 230036, China. Email: yangyanou@ahau.edu.cnSearch for more papers by this author First published: 25 October 2021 https://doi.org/10.1111/anu.13367Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract To investigate the effects of tea polyphenols (TPs) on the growth and carbohydrate metabolism of grass carp (Ctenopharyngodon idella), 0 (control group), 250, 500, 1000, 2000, and 4000 mg kg−1 TPs were added to the basal diet and fed to grass carps for 8 weeks. The results show that 500 mg kg−1 group exhibited the significantly highest feed conversion efficiency (FCE) and specific growth rate (SGR) (p < .05) and significantly higher activities of pyruvate kinase (PK), lactate dehydrogenase (LDH), malate dehydrogenase (MDH) and succinate dehydrogenase (SDH) (p < .05). The livers of the control group and 500 mg kg−1 group were subjected to RNA-Seq, and the expressions of glycogen phosphorylase (PYG) and sucrase-isomaltase (SI) genes were upregulated, while that of glucose-6-phosphatase (G6PC) was downregulated, and these promoted glycogen catabolism. The expressions of glucokinase (GK), PK, 6-phosphofructokinase (PFK), glucose-6-phosphate 1-dehydrogenase (G6PD) and fructose-bisphosphate aldolase A (ALDOA) genes were upregulated to promote glucose catabolism. The results indicate that 500 mg kg−1 TPs could upregulate the expressions of some genes that promote carbohydrate decomposition, increase the activities of carbohydrate decomposition enzymes and enhance the utilization of carbohydrates, thereby improving the FCE and SGR. CONFLICT OF INTEREST The authors declare that there are no conflicts of interest. Open Research Data Availability Statement The data that support the findings of this study are appearing in the submitted article. 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