Comparative Growth of Juvenile Sturgeon Hybrid Acipenser baerii ♀× A. schrenckii ♂ under Different Water Velocities
HU Jia1,2, LI Yanhua1,2, WANG Lu1,2, XIAN Daqiang1,2, YANG Xiuping3, SHUANG Changhe4
1. Tongren Polytechnic College, Tongren 554300, China; 2. Tongren Engineering Research Center of Special Aquaculure Development and Improvement, Tongren 554300, China; 3. Guizhou Jiangkou Lüyuan Aquatic Products Development Co., Ltd., Tongren 554300, China; 4. Guizhou Ancient Sturgeon Biotechnology Co., Ltd., Tongren 554300, China
Abstract：Considering the optimization of culture environment, the effect of water velocity on the growth of fish remains to be further explored. The effects of different water velocities on the growth of juvenile Siberian sturgeon Acipenser baerii♀×Amur sturgeon A. schrenckii♂ were investigated, including five levels of water velocities (1 body length/s, 2 body length/s, 3 body length/s, 4 body length/s, and 6 body length/s) and control group(0 body length /s) along the walls in a round fiberglass bowl respectively, which were correspond to 1, 2, 3, 4, 6 and 0 (control group) times of body length. After 77 days of cultivation, the best final body weight, final body length, net weight gain, daily weight gain, specific growth rate and growth efficiency were found at the water velocity of 3 body length/s (P>0.05), the feed conversion efficiency was the minimum at the water velocity of 3 body length/s. There is a certain correlation between the growth indices and the flow velocity. Appropriate flow velocity stimulated the growth of fish and feed conversion. Too high or too low flow velocity was not conducive to the growth and feed conversion of the juvenile sturgeon.The findings can be used as a reference with water velocity setting in culture of juvenile sturgeon hybrid A. baerii♀×A. schrenckii♂, so as to guide the production to improve the growth efficiency and to reduce the cost.
胡佳, 李艳华, 王鲁, 先大强, 杨秀萍, 双长河. 不同流速下西杂鲟稚鱼生长对比研究[J]. 水产科学, 2022, 41(6): 1023-1028.
HU Jia, LI Yanhua, WANG Lu, XIAN Daqiang, YANG Xiuping, SHUANG Changhe. Comparative Growth of Juvenile Sturgeon Hybrid Acipenser baerii ♀× A. schrenckii ♂ under Different Water Velocities. Fisheries Science, 2022, 41(6): 1023-1028.
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2022, Vol. 41 
