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当前位置: 首页 > 文章 > 工厂化养殖条件下大鲵适宜养殖密度的研究 淡水渔业 2013,43 (6) 73-77
Position: Home > Articles > Suitable stocking density of Andrias davidianus on the conditions of industrial aquaculture Freshwater Fisheries 2013,43 (6) 73-77

工厂化养殖条件下大鲵适宜养殖密度的研究

作  者：
王芳;刘小召;冯骞;白静;刘秋凤;田海峰;孟彦;肖汉兵
单  位：
浙江永强农业技术发展有限公司;华中农业大学水产学院;中国水产科学研究院长江水产研究所
关键词：
大鲵(Andrias davidianus);适宜养殖密度;特定生长率;饵料系数
摘  要：
在工厂化养殖条件下,研究了养殖密度对2~5龄大鲵(Andrias davidianus)摄食与生长的影响。结果表明:2龄大鲵适宜养殖密度为27尾/m2,该组特定生长率显著高于9尾/m2组、18尾/m2组(P<0.05),且饵料系数最低;当养殖密度为17尾/m2时,3龄大鲵的增重率、特定生长率最大,饵料系数最低且与低密度5尾/m2组差异显著(P<0.05),确定3龄大鲵的适宜养殖密度为17尾/m2;4龄大鲵特定生长率的最大值出现在养殖密度为10尾/m2,显著高于16尾/m2组(P<0.05),且饵料系数最低,4龄大鲵的适宜养殖密度为10尾/m2;5龄大鲵的适宜养殖密度为5尾/m2,特定生长率与高密度组9尾/m2差异显著(P<0.05),饵料系数最低。大鲵适宜养殖密度与体重存在显著的负相关性,关系式为y=-0.016 4x+25.34(r2=0.839 9)。
译  名：
Suitable stocking density of Andrias davidianus on the conditions of industrial aquaculture
作  者：
WANG Fang;LIU Xiao-zhao;FENG Qian;BAI Jing;LIU Qiu-feng;TIAN Hai-feng;MENG Yan;XIAO Han-bing;College of Fisheries,Huazhong Agricultural University;Zhejiang Yongqiang Agricultural Technology Development Co. Ltd.;Yangtze River Fisheries Research Institute,Chinese Academy of Fishery Sciences;
关键词：
Andrias davidianus;;suitable stocking density;;special growth rate;;feed conversion ratio
摘  要：
The effects of stocking density on the growth and ingestion of 2 ~ 5 year old Andrias davidianus on the conditions of industrial aquaculture were studied. The results showed that: The suitable stocking density of 2 year old A. davidianus is27 tail / m2which special growth rate is significantly higher than the group of 9 tail / m2and 18 tail / m2( P < 0. 05); The weight gain rate and the special growth rate of 3 year old A. davidianus were the highest when the stocking density is 17 tail /m2. The feed conversion ratio of 17 tail / m2is significantly lower than 5 tail / m2( P <0. 05). The suitable stocking density of 3 year old giant salamander is 17 tail / m2. The suitable stocking density of 4 year old A. davidianus is 10 tail / m2. The special growth rate is the highest when the stocking density is 10 tail / m2,and it is obviously higher than the group of16 tail / m2( P <0. 05). The suitable stocking density of 5 year old A. davidianus is 5 tail/m2. The special growth rate is the highest and the feed conversion ratio is the lowest. There was significant negative linear correlation between the suitable stocking density and weight( y =- 0. 016 4x + 25. 34,r2= 0. 839 9).

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