| 罗非鱼开口饵料的初步研究 |
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| 引用本文： | 强俊,李瑞伟,董晓慧,王辉.罗非鱼开口饵料的初步研究[J].广东海洋大学学报,2008,28(6). |
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| 作者姓名： | 强俊 李瑞伟 董晓慧 王辉 |
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| 作者单位： | 1. 广东海洋大学水产学院,广东,湛江,524025
2. 广东茂名三高罗非鱼良种基地,广东,茂名,525024 |
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| 基金项目： | 广东省科技计划项目
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| 摘 要： | 研究了配合饵料、轮虫、蛋黄、轮虫+人工配合饵料(3～12日龄投喂轮虫,13日龄起投喂配合饵料)等4种开口饵料对奥尼罗非鱼仔鱼生长、发育和存活影响。结果表明,1)投喂不同饵料对奥尼罗非鱼仔鱼生长具有显著影响(P<0.05),轮虫+配合饵料组生长较快,绝对增重率和特定增重率分别为0.011g/d和17.18%d-1;蛋黄组生长最慢,绝对增重率和特定增重率与其他各组差异显著(P<0.05)。2)轮虫+配合饵料与轮虫组的仔鱼成活率较高,分别为90.3%和89.7%,2组差异不显著(P>0.05),且仔鱼发育较好,大部分个体进入稚鱼阶段;蛋黄组成活率最低,只有40.7%,个体发育较为缓慢,与其他各组差异显著(P<0.05)。可见,投喂鲜活的天然饵料(轮虫)+配合饵料是罗非鱼苗种培育的最佳开口饵料。
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| 关 键 词： | 罗非鱼 仔鱼 开口饵料 生长 发育 存活率 |
Pilot Study on First Feeding of Tilapia |
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| QIANG Jun,LI Rui-wei,DONG Xiao-hui,WANG Hui.Pilot Study on First Feeding of Tilapia[J].Journal of Zhanjiang Ocean University,2008,28(6). |
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| Authors: | QIANG Jun LI Rui-wei DONG Xiao-hui WANG Hui |
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| Institution: | QIANG Jun1,LI Rui-wei2,DONG Xiao-hui1,WANG Hui1(1.Fisheries college,Guangdong Ocean University,Zhanjiang 524025,China,2.Guangdong Maoming Sangao Tilapia Breeding Farm,Maoming 525024,China) |
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| Abstract: | An experiment was conducted to investigate the influence on the growth,development and survival of tilapia larvae by four different diets in first feeding.Larval tilapia at an initial average size of 0.006±0.0005 g were divided into four groups and three replications for each group.Four groups of the larvae were fed with artificial diets,rotifers,eggs and rotifers + artificial diets for 21 days.The results showed that the growth of the tilapia larvae did differ significantly(P<0.05).The larvae feeding on rotifers + artificial diets grew the fastest,their absolute growth rate and the specific growth rate were 0.011 g/d and 17.18%/d respectively;When the larvae was raised with eggs,the growth rate was very low(P<0.05);feeding rotifers or rotifers+ artificial diets to larval tilapia would significantly increase their livability,the mean survival rate attained to 89.7% ～ 90.3% and the larvae developed well;but the livability of larvae taking in eggs was the lowest,only 40.7% and developed slowly(P<0.05).The present study suggested that the rotifers + artificial diets were good for larvae of tilapia in first feeding. |
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| Keywords: | tilapia larvae first feeding growth development survival |
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