| MU Yingchun,WANG Fang,DONG Shuanglin,DONG Shaoshuai,ZHU Changbo. 2005. Effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis. Acta Oceanologica Sinica, (3):141－147 |
| Effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis |
| Effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis |
| Received:October 03, 2004 Revised:April 26, 2005 |
| DOI： |
| Key words:Fenneropenaeus chinensis salinity fluctuation intermolt period growth |
| 中文关键词: Fenneropenaeus chinensis salinity fluctuation intermolt period growth |
| 基金项目: |
| Author Name | Affiliation | E-mail | | MU Yingchun | Key Laboratory of Mariculture of Ministry of Education, Fisheries College, Department of Life Sciences and Technology, Ocean University of China, Qingdao 266003, China | | | WANG Fang | Key Laboratory of Mariculture of Ministry of Education, Fisheries College, Department of Life Sciences and Technology, Ocean University of China, Qingdao 266003, China | wangfang249@mail.ouc.edu.cn | | DONG Shuanglin | Key Laboratory of Mariculture of Ministry of Education, Fisheries College, Department of Life Sciences and Technology, Ocean University of China, Qingdao 266003, China | | | DONG Shaoshuai | Key Laboratory of Mariculture of Ministry of Education, Fisheries College, Department of Life Sciences and Technology, Ocean University of China, Qingdao 266003, China | | | ZHU Changbo | Key Laboratory of Mariculture of Ministry of Education, Fisheries College, Department of Life Sciences and Technology, Ocean University of China, Qingdao 266003, China | |
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| Abstract: |
| Experiments were conducted to examine the effects of salinity fluctuation on the intermolt period and growth of Fenneropenaeus chinensis with an initial body weight of (0.553 2±0.000 1)g (mean plus or minus SE). The salinity (S0) of the control treatment is 30throughout the experiment, while the treatments S2, S4, S7 and S10 are subjected to different salinity fluctuations, and the ranges are 2, 4,7 and 10, respectively. After a 30-day feeding trial, the longest and the shortest intermolt periods of the shrimp occur under Treatments S10 and S2, respectively (difference 37.14%). The special growth rates (SGR) of the shrimp under the five treatments are ranked as S7 > S4 > S2 > S10 > S0, and the SGR of the shrimp under Treatment S0 is lower than that under Treatments S4 and S7 by 22.36% and 28.11%,respectively (P<0.05). The minimal feed intake (FI) of the experimental animals occurs in Treatment S0 (84.04% and 88.54% of that under Treatments S4 and S7, respectively) (P<0.05). There are no significant differences in the food conversion efficiency (FCE) of the shrimp under the five treatments (P>0.05) |
| 中文摘要: |
| Experiments were conducted to examine the effects of salinity fluctuation on the intermolt period and growth of Fenneropenaeus chinensis with an initial body weight of (0.553 2±0.000 1)g (mean plus or minus SE). The salinity (S0) of the control treatment is 30throughout the experiment, while the treatments S2, S4, S7 and S10 are subjected to different salinity fluctuations, and the ranges are 2, 4,7 and 10, respectively. After a 30-day feeding trial, the longest and the shortest intermolt periods of the shrimp occur under Treatments S10 and S2, respectively (difference 37.14%). The special growth rates (SGR) of the shrimp under the five treatments are ranked as S7 > S4 > S2 > S10 > S0, and the SGR of the shrimp under Treatment S0 is lower than that under Treatments S4 and S7 by 22.36% and 28.11%,respectively (P<0.05). The minimal feed intake (FI) of the experimental animals occurs in Treatment S0 (84.04% and 88.54% of that under Treatments S4 and S7, respectively) (P<0.05). There are no significant differences in the food conversion efficiency (FCE) of the shrimp under the five treatments (P>0.05) |
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