文献类型：期刊文献

英文题名：Effects of Dietary Protein Levels on Growth Performance, Antioxidant Capacity, Hepatic Injury and Intestinal Flora of Juvenile Eleutheronema tetradactylum

作者：Zhang, Xin[1,2,3,4]; Yin, Bin[5]; Li, Wangdong[5]; Pan, Ruihong[5]; Luo, Mingfei[5]; Yu, Fangzhao[5]; Luthfiah, Adinda[1,2,3,4]; Huang, Jiaming[6]; Chen, Weijun[6]; Wei, Zhenna[6]; Kangze, Xv[1,2,3,4]; Fan, Dengbao[1,2,3,4]; Yang, Qihui[1,2,3,4]; Wang, Zhongliang[1,2,3,4]; Tan, Beiping[1,2,3,4]; Zhang, Wei[1,2,3,4]

机构：[1] Laboratory of Aquatic Animal Nutrition and Feed, College of Fisheries, Guangdong Ocean University, Guangdong, Zhanjiang, 524088, China; [2] Aquatic Animals Precision Nutrition and High-Efficiency Feed Engineering Research Center of Guangdong Province, Guangdong, Zhanjiang, 524088, China; [3] Key Laboratory of Aquatic, Livestock and Poultry Feed Science and Technology in South China, Ministry of Agriculture, Guangdong, Zhanjiang, 524088, China; [4] Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Guangdong, Zhanjiang, 524088, China; [5] Zhuhai Modern Agriculture Development Center, Guangdong, Zhuhai, 519000, China; [6] Guangdong Evergreen Feed Industry Co. Ltd, Zhanjiang, 524002, China

年份：2026

外文期刊名：SSRN

收录：EI(收录号：20260191938)

语种：英文

外文关键词：Antioxidants - Aquaculture - Cost effectiveness - Efficiency - Fish - Metabolism - Nutrients - Nutrition - Physiology

外文摘要：Dietary protein is the most critical and costly nutrient in aquafeeds, and optimizing its inclusion level is essential for improving growth performance while maintaining physiological health and reducing nitrogen waste. However, the protein requirement of juvenile E. tetradactylum, an emerging marine aquaculture species, remains poorly defined. This study investigated the effects of graded dietary protein levels (39–54%) on growth performance, feed utilization, metabolic responses, antioxidant status, liver histology, digestive enzyme activities and intestinal microbiota of juvenile E. tetradactylum during a 70-day feeding trial. Growth performance exhibited a typical dose–response pattern, with fish fed the 45% protein diet showing significantly improved specific growth rate, survival rate and feed efficiency compared with other treatments (P ? 2026, The Authors. All rights reserved.