蛋氨酸硒对刺参生长及消化道指数的影响  

Effect of dietary methionine selenium on growth and digestive index of sea cucumber Apostichopus japonicus

作　　者：周玮[1] 曹芹[1] 王祖峰[1] 胡晓洁[1] 张津源[1] 刘剑波[1] 

机构地区：[1]大连海洋大学水产与生命学院,辽宁大连116023

出　　处：《大连海洋大学学报》2015年第2期181-184,共4页Journal of Dalian Ocean University

基　　金：国家"十二五"科技支撑计划项目(2011BAD13B03)

摘　　要：为研究蛋氨酸硒对刺参Apostichopus japonicus个体生长和消化道指数的影响,选用体质量为(45±5)g、体长为(10±1)cm的刺参270头,在基础饲料中添加不同量的蛋氨酸硒,使饲料中硒添加量分别为0、0.2、0.4、0.6、0.8、1.0 mg/kg,分6组进行投喂试验,饲养60 d后测定刺参个体生长和消化道指数的变化情况。结果表明:在本试验条件下,随着硒添加量从0增加到1.0 mg/kg,刺参的体长特定增长率从0.11%/d提高到0.34%/d,体质量特定增长率从0.18%/d提高到0.46%/d,均呈上升趋势;肠质量从1.67 g提高到2.21 g;相对消化道质量从0.032 3提高到0.037 0;脏壁比从0.060 8下降到0.051 7。研究表明,蛋氨酸硒可明显促进刺参的消化、生长,且随着蛋氨酸硒含量的增加,促进消化、生长的效果越好。Juvenile sea cucumber Apostichopus japonicus with body weight of（ 45 ± 5） g and body length（ 10 ± 1）cm was fed the diets containing methionine selenium at a rate of 0,0. 2,0. 4,0. 6,0. 8 and 1. 0 mg / kg diet at water temperature of 13 ℃ and a salinity of 27 for 60 days to study the impact of selenium methionine on growth and digestive index of the sea cucumber. The results showed that the specific growth rate in body length was shown to be increased from 0. 11% / d to 0. 34% / d,specific growth rate in body weight increased from 0. 18% / d to 0. 46% / d,gut mass increased from 1. 67 g to 2. 21 g,relative gut mass increased from 0. 032 3 to 0. 037 0,and the viscera-somatic ratio decreased from 0. 060 8 to 0. 051 7 under the test conditions with the increase in dietary methionine selenium from 0 mg / kg to 1. 0 mg / kg. The findings indicate that dietary methionine selenium lead to improve the growth and digestibility of sea cucumber,with better effects at higher dose of dietary methionine selenium within the limit in present study.

关 键 词：刺参 蛋氨酸硒 生长率 消化道指数 

分 类 号：S965.112[农业科学—水产养殖]