不同频率超声波对彩虹鲷幼鱼生长发育的影响  

Effects of different frequency ultrasonic on the growth of Oreochromis mossambicus ×O. niloticus larvae

作　　者：李建聪[1] 袁重桂[1] 阮成旭[1] 李潜洲 陶翠丽 

机构地区：[1]福州大学生物科学与工程学院,福建福州350116

出　　处：《福州大学学报（自然科学版）》2016年第2期277-281,共5页Journal of Fuzhou University(Natural Science Edition)

基　　金：海水鱼内陆无公害生态精养模式研究与开发横向合作项目(00801401)

摘　　要：研究超声波辐射频率分别为0、20、28、40 k Hz时,对质量为(0.23±0.05)g彩虹鲷幼鱼生长发育的影响.30 d的试验结果表明:超声波辐射频率为20 k Hz试验组的质量相对增加率、特定生长率、蛋白质表观消化率最高,分别为(108.80±4.09)%、(2.45±0.70)%·d^(- 1)和(90.60±1.26)%;辐射频率为28 k Hz试验组彩虹鲷幼鱼的干物质消化率最高,为(69.58±1.94)%;超声波辐射频率为40 k Hz试验组的质量相对增加率、特定生长率、干物质消化率、蛋白质表观消化率最低,分别为(71.79±1.64)%、(1.80±0.31)%、(60.46±1.17)%和(86.06±1.81)%.由研究结果可知,不同超声波辐射频率对彩虹鲷幼鱼的质量相对增加率、特定生长率、消化率有显著影响(P<0.05).超声波辐射频率在20~28 k Hz间有利于彩虹鲷幼鱼生长,超声波辐射频率为40 k Hz时不利于彩虹鲷幼鱼生长发育.The effects of variable frequency ultrasonic on the growth and development of Red Tilapia larvae have been studied. The Red Tilapia larvae（ body weight was（ 0. 23 ± 0. 05） g） that were reared for30 d was divided into four ultrasonic frequency 0,20,28,40 k Hz. The results indicated that in frequency 20 k Hz,the Red Tilapia larvae had the highest relative weight gain rate was（ 108. 80 ± 4. 09） %,specific growth rate was（ 2. 45 ± 0. 70） % ·d- 1 and the apparent digestibility of protein matter was（ 90. 60 ± 1. 26） %. In frequency 28 k Hz,the Red Tilapia larvae attained the highest apparent digestibility of dry matter was（ 69. 58 ± 1. 94） %. However,in frequency 40 k Hz,the relative weight gain rate was（ 71. 79 ± 1. 64） %,specific growth rate was（ 1. 80 ± 0. 31） %,the apparent digestibility of dry matter was（ 60. 46 ± 1. 17） % and protein matter was（ 86. 06 ± 1. 81） % were the minimum. The study results show that different frequency ultrasonic had significant effects on the weight gain rate,specific growth rate,digestibility of Red Tilapia larvae（ P 〈0. 05）. It is advantageous to the growth of the Red Tilapia larvae with the ultrasonic frequency between 20 to 28 k Hz,but it is adverse in 40 k Hz.

关 键 词：超声波 辐射频率 彩虹鲷 生长 消化率 

分 类 号：S951[农业科学—水产养殖]