| 循环水养殖赤点石斑鱼幼鱼放养密度研究 |
| |
| 引用本文： | 周绍锋,周瑞发,谢友亮,夏道演.循环水养殖赤点石斑鱼幼鱼放养密度研究[J].河北渔业,2016(2). |
| |
| 作者姓名： | 周绍锋 周瑞发 谢友亮 夏道演 |
| |
| 作者单位： | 宁德市南海水产科技有限公司,福建宁德,352102 |
| |
| 基金项目： | 福建省科技计划项目“赤点石斑鱼室内低盐养殖技术示范与推广”(项目编号2015S0078)；国家星火“赤点石斑鱼规模化育苗和养殖技术示范推广”(项目申报编号S2015C400062)；福建省海洋经济创新发展区域示范项目“乌贼工业化循环高效健康养殖示范基地建设”。 |
| |
| 摘 要： | 将体质量(10.82±0.17)g的赤点石斑鱼(Epinephelus akaara)幼鱼饲养在室内循环水、直径40cm×水深50cm池中,每个池中10(G_(10))、20(G_(20))和40(G_(40))尾,投喂常规饲料,每周测4次水质。8周的养殖结果表明,养殖时间和放养密度均影响赤点石斑鱼的生长、存活和水质。随着养殖时间的加长,成活率逐步降低,但整体保持在40.00%~90.00%之间,G_(10)组的成活率显著高于G_(40)组(P0.05)。试验结束时,赤点石斑鱼的增重率(WGR)变化在(47.97±1.98)~(68.02±2.34)%之间,特定生长率(SGR)变化在(0.70±0.33)~(0.93±0.42)%/d之间,两指标不同密度组差异显著(P0.05),而各组鱼的肝体比(HIS)、内脏比(VSI)和肥满度(CF)差异不显著(P0.05)。
|
| 关 键 词： | 赤点石斑鱼 室内 循环水养殖 |
Effects of Stocking Density on Growth and Survival of Epinephelus akaara and Water Quality in an Indoor Recirculating Aquaculture System |
| |
| Abstract: | The body mass (10 .82 ± 0 .17) g of Epinephelus akaara juveniles reared indoors circulating water ,diameter 40 cm × 50 cm depth of water in the pool ,each pool of 10 (G10 ) , 20 (G20 ) and 40 (G40 ) tail ,fed conventional feed ,four times weekly water quality testing .The results showed that eight weeks of farming , breeding times and stocking density all affect Epinephelus akaara the growth ,survival and water quality .Breeding process ,the survival rate varied between 40 . 00% ~90.00% ,aquaculture prolonged ,the greater the density ,the lower the survival rate ,survival rate was significantly higher than G10 ,G40 group (P< 0 .05) .At the end of the test ,weight gain points with grouper (WGR) changes in (47 .97 ± 1 .98)~ (68 .02 ± 2 .34) between% ,the specific growth rate (SGR) change (0 .70 ± 0 .33)~(0 .93 ± 0 .42) between % /d ,different densities group differences between the two indexes significantly (P<0 .05) ,and each group of fish liver body weight ratio (HIS) ,visceral ratio (VSI) and Fatness (CF) was not significantly different (P>0 .05) . |
| |
| Keywords: | Epinephelus akaara indoor aquaculture in a recirculating system |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
