水产学报2018，Vol.42Issue(5)：744-753,10.DOI:10.11964/jfc.20170310770
复合蛋白源替代鱼粉对杂交鳢生长、体组成与生化指标的影响
Effects of replacing fish meal with compound proteins on the growth, body composition and biochemical indices of hybrid snakehead
摘要
Abstract
This experiment was conducted to study the effect of replacement of fish meal by compound protein (fermented rapeseed meal+cotton meal+silkworm pupae+mulberry leaves) on the growth, body composition, anti-oxidant ability and biochemical indices of hybrid snakehead [with the initial weight (22 g)]. Five isonitrogenous and isolipid diets (CP 42%, EE 8.5%) were formulated to contain different levels of compound proteins based upon the basal diet to replace fish meal 0%, 12%, 24%, 36% and 48%. After 8 weeks, the results showed as fol-lows: when the replacement ratio of fish meal by compound protein is more than 12%, the final body weight (FBW) and the specific growth rate (SGR) were significantly decreased, and reached a minimum at 48% substitu-tion level. A lower protein efficiency ratio (PER) and higher feed conversion ratio (FCR) were observed at the 36% and 48% substitution levels. There is no significant difference in feeding rate (FR) for each test group. The re-placement level of compound proteins decreased significantly body crude lipid, viscera somatic index (VSI) and intraperitoneal fat ratio (IPF), and increased significantly whole body moisture. With the compound protein level increasing, the activity of trypsin decreased significantly, whlie the activity of intestinal lipase increased signific-antly. When the compound protein level is higher than 24%, the activities of glutamyl pyruvic transaminase (GPT), superoxide thandismutase (SOD) and the catalyse (CAT) activities significantly increased. Serum CHO was de-creased observably as compound protein ratio is more than 12%, but blood glucose content was decreased observ-ably as compound protein ratio is more than 36%.There were no significant difference in total cholesterol (TC), total protein (TP) and albumin (ALB) for each test group. Results of above show that a suitable percentage (12%) of compound protein replacement of fish meal does not affect the growth of hybrid snakehead. And high replace-ment level would inhibit the growth of hybrid snakehead, but it can improve the glucolipid metabolism and antiox-idant capacity of hybrid snakehead.关键词
杂交鳢/复合蛋白源/鱼粉/生长/生化指标Key words
hybrid snakehead/compound proteins/fish meal/growth/biochemical indices分类
农业科技引用本文复制引用
林仕梅,马卉佳,徐韬,陈拥军,黄先智..复合蛋白源替代鱼粉对杂交鳢生长、体组成与生化指标的影响[J].水产学报,2018,42(5):744-753,10.基金项目
公益性行业科研专项(农业)(201303053) （农业）
重庆市生态渔产业技术体系专项 （）
National Special Research Fund for Non-profit Sector(Agriculture)of China(201303053) （Agriculture）
Chongqing Ecological Fishery Technology System （）
