人工养殖云斑尖塘鳢的生长特性

Growth characteristics of Oxyeleotris marmoratus under artificial breeding

研究了人工养殖条件下云斑尖塘鳢(Oxyeleotris marmoratus)的生长特性。结果表明:经过2个月的生长期,云斑尖塘鳢的平均体长从最初的(17.36±0.99)cm增加到(19.05±0.57)cm,体质量从(139.13±12.90)g增加到(205.50±15.78)g,体长增加10%,体质量增加48%。不同的养殖时间除对摄食率(FR)无显著影响外(P>0.05),对特定生长率(SGR)、饵料转化效率(FCR)和生长效率(GE)都有显著影响(P<0.05)。体长生长与时间表现为线性相关,体质量生长与时间表现为指数相关。云斑尖塘鳢体质量与体长之间呈幂函数关系,不同养殖时间下,幂指数b值都接近3,表明云斑尖塘鳢的体长和体质量呈等速生长。

The study on the growth characteristics of Oxyeleotris marmoratus under artificial breeding showed that after two months growth, the body length （L） of O. marmoratus increased from （17.36±0.99） cm to （19.05±0.57） cm, and its body mass （W） increased from （139.13 ±12.90） g to （205.50± 15.78） g. Different duration of breeding had no significant effects on feeding ratio （FR） （ P 〉 0. 05 ）, but affected specific growth rate （ SGR）, feed conversion ratio （FCR） , and growth efficiency （ GE ） significantly （ P 〈 0. 05 ）. The body length had a linear relationship with breeding duration, and the body mass had an exponential growth with the duration. There was an exponential relationship between body length and body mass, and the exponential value b within different durations was all close to 3, suggesting an isometric growth between the body length and body mass of O. marmoratus.