动物营养学报Issue(10)：3077-3083,7.DOI:10.3969/j.issn.1006-267x.2015.10.012
饲料中锰含量对方格星虫稚虫生长性能、体成分、体腔液中锰超氧化物歧化酶活性及组织锰含量的影响
Effects of Dietary Manganese Content on Growth Performance, Body Composition, Coelomic Fluid Manganese-Superoxide Dismutase Activity and Tissue Manganese Content of Juvenile Peanut Worm, Sipunculus nudus Linnaeus
摘要
Abstract
This trial was conducted to investigate the effects of dietary manganese content on growth perform-ance, body composition, coelomic fluid manganese-superoxide dismutase ( Mn-SOD) activity and tissue man-ganese content of juvenile peanut worm, Sipunculus nudus Linnaeus. Juvenile peanut worm with the average body weight of (17.11±0.12) mg were fed six isonitrogenous and isoenergetic microparticle diets with manga-nese level of 3.45, 8.26, 15.98, 23.16, 28.67, 33.83 mg/kg for 8 weeks, respectively. Each diet had three replicates and each replicate had 400 juvenile peanut worm. The results showed that dietary manganese content had significant effects on weight gain rate ( WGR) , specific growth rate ( SGR) , survival ratio ( SR) , body ether extract and manganese contents, and coelomic fluid Mn-SOD activity ( P<0.05) , but had no significant effects on body moisture, crude protein and ash, and body wall manganese contents ( P>0.05) . With the diet-ary manganese content increasing, the WGR, SGR, SR, body ether extract content and coelomic fluid Mn-SOD activity were firstly increased and then decreased. When the dietary manganese content was 23.16 mg/kg, WGR and SGR produced the maximum values, while SR, body ether extract content and coelo-mic fluid Mn-SOD activity had the maximum values when the dietary manganese content was 28. 67 mg/kg. With WGR as the evaluating index, the suitable dietary manganese requirement of juvenile peanut worm is 22.58 mg/kg diet by regression equation.关键词
方格星虫/锰/生长性能/体成分/组织锰含量/锰超氧化物歧化酶活性Key words
peanut worm, Sipunculus nudus Linnaeus/manganese/growth performance/body composition/tissue manganese content/Mn-SOD activity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..饲料中锰含量对方格星虫稚虫生长性能、体成分、体腔液中锰超氧化物歧化酶活性及组织锰含量的影响[J].动物营养学报,2015,(10):3077-3083,7.基金项目
国家自然科学基金项目(31402304) （31402304）
广西科学研究与技术开发计划(桂科转13129024,桂科合1346011-12,桂科合14125008-2-20) （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(2011GXNSFB018057) （2011GXNSFB018057）
