| 木亮亮，许爱娱，高腾。潘淦.不同初次投饵时间对云斑尖塘鳢仔鱼生长和成活的影响[J].广东农业科学,2014,41(21):116-120 |
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不同初次投饵时间对云斑尖塘鳢仔鱼生长和成活的影响 |
| Effects of initial bait casting time on growth and survival of Oxyeleotris marmorata larva |
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| DOI： |
| 中文关键词: 云斑尖塘鳢 仔鱼 生长 初次投饵时间 存活率 |
| 英文关键词: Oxyeleotris marmorata larvae growth initial bait casting time survival rate |
| 基金项目:广东省省部产学研结合项目（2011B090500009）；广东省海洋渔业科技推广专项科技攻关与研发项目（A201201E05）；广州市番禺区科技攻关项目（2012-Z-02-07） |
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| 中文摘要: |
| 利用人工孵化的云斑尖塘鳢初孵仔鱼，在水温30（±1）℃条件下对其进行不同初次投饵试验，研究其仔鱼生长和成活情况。结果表明，云斑尖塘鳢部分仔鱼在破膜后第2d开口摄食，3日龄开始投饵组的仔鱼相对于其他试验组生长较好。仔鱼初次摄食率为5.56%，5日龄仔鱼初次摄食率最高，混合营养期为3d。仔鱼的不可逆点（PNR）出现在孵出后的第5.5~6 d之间，各组在第7、8d仔鱼日死亡率最高。云斑尖塘鳢仔鱼最佳初次投饵时间为3日龄。 |
| 英文摘要: |
| The effects of different initial bait casting time on growth and survival of artificial incubation Oxyeleotris
marmorata larva was examined at 30 (±1)℃. The results indicated that, a small number of larvae began to open and feed
after rupture in 2 days, the larva, within 3 days of age began to cast the bait, grew better than those in other groups. The initial feeding rate was 5.56%, the initial feeding rate of larva with 5 days of age was at the highest level, and the mixed nutrition period was for 3 days. The point of no return (PNR) of larva was shown on the time of 5.5-6 days after hatch and the daily mortality was the highest between 7 days and 8 days within all groups. The investigation demonstrated that the optimal initial bait casting time for O. marmorata larva was at 3 days of age. |
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