| 不同盐度波动幅度对中国明对虾稚虾蜕皮和生长的影响 |
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| 引用本文： | 穆迎春,王芳,董双林,董少帅,朱长波.不同盐度波动幅度对中国明对虾稚虾蜕皮和生长的影响[J].海洋学报,2005,27(2):122-126. |
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| 作者姓名： | 穆迎春 王芳 董双林 董少帅 朱长波 |
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| 作者单位： | 中国海洋大学, 教育部海水养殖重点实验室, 山东, 青岛, 266003 |
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| 基金项目： | 国家重点规划资助项目(G1999012011)，国家“十五”科技攻关资助项目(2001BA505B)，国家“863”资助项目(2002AA648010) |
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| 摘 要： | 研究了盐度波动幅度对中国明对虾稚虾(Fenneropenaeus chinensis)蜕皮和生长的影响.实验在水族箱内进行,实验对虾的初始体重为(0.553 2±0.000 1)g,投喂人工配合饲料.实验结果表明:(1)不同盐度波动幅度对中国明对虾稚虾的蜕皮周期有显著的影响(P<0.05),其中S10能明显抑制对虾的蜕皮,S2则能促进对虾的蜕皮,前者较后者蜕皮周期延长4.97 d;(2)不同盐度波动幅度对中国明对虾的特定生长率有显著影响(P<0.05),其中,S4和S7两组对虾的特定生长率最大,分别大于S0组28.11%和22.6%,并且与S0和其他处理组相比差异均达到显著水平(P<0.05);(3)不同盐度波动幅度对中国明对虾的摄食量有显著影响(P<0.05),S4和S7两组分别高于S0组15.96%和11.46%;(4)不同盐度波动幅度对中国明对虾的食物转化效率未产生显著的影响P>0.05,但S4和S7两组对虾的食物转化效率较高.
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| 关 键 词： | 中国明对虾 盐度 蜕皮 生长 |
| 文章编号： | 0253-4193(2005)02-0122-05 |
| 收稿时间： | 2004/3/15 0:00:00 |
| 修稿时间： | 2004/4/26 0:00:00 |
The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis |
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| MU Ying-chun,WANG Fang,DONG Shuang-lin,DONG Shao-shuai and ZHU Chang-bo.The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis[J].Acta Oceanologica Sinica (in Chinese),2005,27(2):122-126. |
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| Authors: | MU Ying-chun WANG Fang DONG Shuang-lin DONG Shao-shuai and ZHU Chang-bo |
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| Institution: | Key Laboratory of Maricufture of Ministry of education, Ocean Oviversity of China, Qingdao 366003, China |
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| Abstract: | Experiments were conducted to ex amine the effects of salinity fluctuation on intermolt period and growth of Fenneropenaeus chinensis with initial body weight of(0.5532±0.0001)g.The salinity of the control treatment(S0)was 30 throughout the experiment,while the Treatment s S2,S4,S7 and S10 were subjected to different salinity fluctuations,and the ranges were 2,4,7 and 10,respectively.After the 30 d feeding trial,the longest and the shortest intermolt period of the shrimp occurred under the Treatments S10 and S2,respectively(difference 37.14%).The special growth rates of the shrimp under five treatments were as follows:S7>S4>S2>S10>S0,and the special growth rate of the shrimp under Treat ment S0 was lower than that under Treatments S4 and S7 by 22.36% and 28.11%,respectively(P<0.05).The minimal feed intake of the experimental animal occurred in Treatment S0(84.04% and 88.54% of that under Treatments S4 and S7,respectively)(P<0.05).There were no significant differences among food conversion efficiency of the shrimp under the five treatments(P>0.05). |
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| Keywords: | Fenneropenaeus chinensis salinity fluctuation intermolt period growth |
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