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福建水产 ›› 2012, Vol. 34 ›› Issue (2): 160-162.

• 研究论文 • 上一篇    下一篇

不同投饵率对暗纹东方鲀幼鱼生长的影响

杨城,袁重桂,阮成旭,李朝毅   

  1. 福州大学生物科学与工程学院
  • 收稿日期:2012-01-19 修回日期:2012-02-06 出版日期:2012-04-25 发布日期:2012-05-11
  • 通讯作者: 杨城

Effects of feeding rate on growth of juvenile Takifugu obscurus Abe

  • Received:2012-01-19 Revised:2012-02-06 Online:2012-04-25 Published:2012-05-11

摘要: 比较投饵率水平分别为3%、4%、5%、6%时,对暗纹东方鲀幼鱼生长、饲料效率的影响,以确定暗纹东方鲀幼鱼阶段的适宜投饵率。在23℃下,对规格为3.45~3.56g的暗纹东方鲀幼鱼进行30d的生长实验,结果表明,不同投饵率对暗纹东方鲀幼鱼的特定生长率、质量相对增加率、饲料效率、存活率均有显著影响(p<0.05);暗纹东方鲀幼鱼的适宜投饵率为4%,在投饵率为4℅时,质量相对增加率为116.04±0.04%,饲料效率达83.70±0.02%,特定生长率为111.49±0.03%/d,存活率为84.44±0.02%。

关键词: 投饵率, 暗纹东方鲀, 幼鱼, 生长, feeding rat, juvenil, Takifugu obscurus Abe, growth

Abstract: A growth experiment was conducted to determine the optimum feeding rate and the effects of different feeding rate on the growth performance of juvenil Takifugu obscurus Abe were studied. Four daily feeding rates were designed at 3%, 4%, 5% and 6% of the total body weight. Under the water temperature of 23℃, feed the fish that the average weight was 3.45-3.56g.After 30d growth experiment,the results showed that the relative weight gain, specific growth rate ,food conversion efficiency and survival rate were significantly (p<0.05) affected by feeding rate. the optimum feeding rate of juvenile Takifugu obscurus Abe should be 4%, on the feeding rate the relative weight gain was 116.04±0.04%,food conversion efficiency is 83.70±0.02%,specific growth rate is 111.49±0.03%/d,survival rat is 84.44±0.02 %.