广西科学院学报2016，Vol.32Issue(3)：209-214,6.DOI:10.13657/j.cnki.gxkxyxb.20160826.009
饲料铜水平对方格星虫稚虫生长及体组成的影响
Effect of Dietary Copper Level on Growth Performance and Body Composition of Juvenile Peanut Worm, Sipunculus nudus Linnaeus
摘要
Abstract
Objective]This trial was conducted to investigate the effects of dietary copper lev-els on growth performance and body composition of j uvenile peanut worm,Sipunculus nudus Linnaeus.[Methods]S.nudus juveniles with average body weight of (18.45 ±0.11) mg were fed diets with six copper levels (2.7 mg/kg,7.5 mg/kg,11.2 mg/kg,19.8 mg/kg, 30.4 mg/kg,52.1 mg/kg diet)for 56 d.[Results]The results showed that the dietary copper levels had significant effects on weight gain rate (WGR),specific gain rate (SGR)(P <0.05).With the increasing of dietary copper levels,WGR and SGR were increased,then de-creased in generally,and increased again,and reached the maximum at 1 1 .2 mg/kg.No significant differences were observed in survival ratio (SR),body moisture,body protein content, body lipid content and body ash content of S. nudus among dietary treatments with graded levels of copper (P >0.05 ).[Conclusion]The dietary copper levels range which could acquire high WGR were from 7.5 mg/kg to 11.2 mg/kg.关键词
方格星虫/铜水平/生长性能/成活率/体组成Key words
Sipunculus nudus/copper level/growth performance/survival ratio/body compo-sition分类
农业科技引用本文复制引用
许明珠,张琴,童潼,董兰芳,杨家林,蒋艳,黄国强..饲料铜水平对方格星虫稚虫生长及体组成的影响[J].广西科学院学报,2016,32(3):209-214,6.基金项目
国家自然科学基金项目(31402304),广西科学研究与技术开发计划项目(桂科转13129024,桂科合1346011-12,桂科合14125008-2-20),广西自然科学基金项目(2015GXNSFBB139005)和广西科学院基本科研业务费项目(15YJ22HYS15)资助。 （31402304）
