文献类型：期刊文献

英文题名：Supplementation of L-Tryptophan in Grouper (Epinephelus fuscoguttatus × E. lanceolatus ) Diet Alleviates Soybean Meal-Induced Enteritis

作者：Xue, Min[4]; Aobo, Pang[1,2,3]; Tingting, Wang[1,2,3]; Kangze, Xv[1,2,3]; Luthfiah, Adinda[1,2,3]; Deng, Junming[1,2,3]; Yang, Qihui[1,2,3]; Chi, Shuyan[1,2,3]; Zhang, Wei[1,2,3]; Tan, Beiping[1,2,3]; Zhang, Xin[1,2,3]

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 Ocean University, China

年份：2026

外文期刊名：SSRN

收录：EI(收录号：20260031748)

语种：英文

外文关键词：Antioxidants - Dietary supplements - Diseases - Genes - Nitrogen fixation - Nutrition - Proteins

外文摘要：This study investigated the effects of dietary tryptophan supplementation on the alleviation of soybean meal-induced enteritis (SBMIE) in a hybrid giant tiger grouper (Epinephelus fuscoguttatus × E. lanceolatus ), a carnivorous marine fish. The experimental groups were fed soybean meal-based diet (SBM), fish meal-based diet (FM), and SBM diets supplemented with different L-tryptophan levels (0.2%, 0.4%, 0.6%, 0.8%, 1.0%) named as TRP1, TRP2, TRP3, TRP4 and TRP5. A total of 840 hybrid grouper with an initial average body weight of 21.17 ± 0.02 g were randomly assigned to seven experimental groups, each with three biological replicates of 40 fishs per replicate. The results demonstrated that 0.4% tryptophan supplementation (TRP2) significantly improved weight gain rate (WGR) and specific growth rate (SGR), reduced feed conversion ratio (FCR), and mitigated intestinal histopathological damage (e.g., reduced mucosal folds and inflammatory cell infiltration) (P ? 2026, The Authors. All rights reserved.