文献类型：期刊文献

英文题名：Effects of fishmeal replacement by Tenebrio molitor meal on growth performance, antioxidant enzyme activities and disease resistance of the juvenile pearl gentian grouper (Epinephelus lanceolatus ♂ x Epinephelus fuscoguttatus ♀)

作者：Song, Shou-Gang[1];Chi, Shu-Yan[1,2];Tan, Bei-Ping[1,2,3];Liang, Guan-Ling[1];Lu, Bing-Qi[1];Dong, Xiao-Hui[1,2,3];Yang, Qi-Hui[1,2];Liu, Hong-Yu[1,2];Zhang, Shuang[1,2]

机构：[1]Guangdong Ocean Univ, Fisheries Coll, Lab Aquat Anim Nutr & Feed, Zhanjiang, Peoples R China;[2]Minist Agr, Key Lab Aquat Livestock & Poultry Feed Sci & Tech, Zhanjiang, Peoples R China;[3]South China Sea Bioresource Exploitat & Utilizat, Guangzhou, Guangdong, Peoples R China

年份：2018

卷号：49

期号：6

起止页码：2210

外文期刊名：AQUACULTURE RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000431489200015)、、WOS

基金：China Agriculture Research System (CARS-47) and Science and technology project on Special Fund for public welfare research and ability construction of Guangdong Province, China, Grant/Award Number: 2016A020206006

语种：英文

外文关键词：antioxidant enzymes; growth; pearl gentian grouper; resistance; Tenebrio molitor meal

外文摘要：A 50-day feeding trial was conducted for juvenile pearl gentian grouper (Epinephelus lanceolatus male x Epinephelus fuscoguttatus female) to determine the optimal amount of Tenebrio molitor meal (TM) that could replace fishmeal (FM) in feeds without reducing growth performance, antioxidant enzyme activities and resistance. Six isonitrogenous and isolipidic diets were formulated with TM replacing 0% (T0), 6.25% (T6), 12.5% (T12), 18.75% (T18), 25% (T25), 31.25% (T31) FM respectively. Each diet was randomly divided into triplicate groups with 30 juveniles (initial weight 6.60 +/- 0.00g). After feeding trail, fish were challenged by Vibrio harveyi for 7 days. The results showed that each treatment had better survival rate between 96.67% and 100%. Fish fed with control and T6 diet showed lower final weight and weight gain rate as compared to other diets. The feed conversion ratio of fish fed on T12 and T18 diet had no significant difference compared to control diet. As compared to control diet, other diets had no significant differences on specific growth rate and temperature growth coefficient. Fish fed with T6 diet had highest liver glutathione reductase activities. No significant differences were observed in liver superoxide dismutase activities in fish fed with T6, T12, T25, T31 and control diet. Fish fed on T18 diet had lowest hepatic malondialdehyde contents and a highest relative per cent survival. According to a broken-line model, the recommended substituted ratio of TM for FM was estimated to be 12.3% for grouper obtaining maximum WGR, corresponding to additive amount of TM is 4.92%.