The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile <i>Fenneropenaeus chinensis</i>

MU Ying-chun; WANG Fang; DONG Shuang-lin; DONG Shao-shuai; ZHU Chang-bo

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MU Ying-chun, WANG Fang, DONG Shuang-lin, DONG Shao-shuai, ZHU Chang-bo. The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis[J]. Haiyang Xuebao, 2005, 27(2): 122-126.

Citation:

MU Ying-chun, WANG Fang, DONG Shuang-lin, DONG Shao-shuai, ZHU Chang-bo. The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis[J]. Haiyang Xuebao, 2005, 27(2): 122-126.

Citation:

MU Ying-chun, WANG Fang, DONG Shuang-lin, DONG Shao-shuai, ZHU Chang-bo. The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis[J]. Haiyang Xuebao, 2005, 27(2): 122-126.

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The effects of salinity fluctuation in different ranges on the intermolt period and growth of juvenile Fenneropenaeus chinensis

Key Laboratory of Maricufture of Ministry of education, Ocean Oviversity of China, Qingdao 366003, China

Received Date: 2004-03-15
Rev Recd Date: 2004-04-26

Abstract

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).
- Fenneropenaeus chinensis,
- salinity fluctuation,
- intermolt period,
- growth

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References(29)

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