摘要
为探究陆基圆池养殖条件下大口黑鲈适宜的日投饲率,试验设置1.6%、1.9%、2.2%、2.5%和2.8%等5个投饲率,实验池水温24.8~26.5℃,以研究不同投饲率对初始体质量为(116.00±10.68)g的大口黑鲈生长及主要养殖效能的影响。结果表明,大口黑鲈的体质量日增重率、特定生长率和单位面积产量均为B5组(日投饲率2.8%)最高,其次为B3组(日投饲率2.2%);饲料系数和变异系数组间差异不显著(P>0.05)。基于主要生长指标和养殖效能参数的综合评价,在陆基圆池养殖条件下,初始体质量为(116.00±10.68)g的大口黑鲈日投饲率以2.2%为宜。
In order to investigate the optimal daily feeding rates of Micropterus salmoides in land-based circular pond culture,five feeding rates were set as 1.6%,1.9%,2.2%,2.5%and 2.8%,and the water temperature of the experimental pond was set as 24.8℃to 26.5℃.The effects of different feeding levels on the growth and main breeding efficiency of M.salmoides with initial body weight of(116.00±10.68)g were studied.The results showed that the daily weight gain rate,specific growth rate and output per square meter were the highest in B5 group(daily feeding rate 2.8%),followed by B3 group(daily feeding rate 2.2%).There were no significant differences in feed conversion ratio and coefficient of variation between groups(P>0.05).Based on the comprehensive evaluation of main growth indexes and breeding efficiency parameters,the optimal daily feeding rate of M.salmoides with an initial body weight of(116.00±10.68)g was 2.2%in land-based circular pond culture.
作者
麻艳群
司楠
介百飞
程光平
江林源
李坚明
董升辉
古昌辉
程蔓
MA Yanqun;SI Nan;JIE Baifei;CHENG Guangping;JIANG Linyuan;LI Jianming;DONG Shenghui;GU Changhui;CHENG Man(College of Animal Science and Technology,Guangxi University,Nanning 530004,China;Guangxi Aquatic Technology Extension Station,Nanning 530002,China;Guangxi Institute of Oceanology Co.,Ltd.,Beihai 536000,China)
出处
《渔业研究》
2022年第3期223-228,共6页
Journal of Fisheries Research
基金
2020年广西渔业健康养殖监管系统建设及渔稻综合种养模式技术集成项目《陆基圆池循环水养殖示范推广项目(鲈鱼)》
2021年水产健康养殖、生态养殖和尾水生态治理技术集成与示范项目《陆基圆池养殖技术模式研究》
陆基圆池智能化养殖技术集成创新与示范推广(桂科AB21220019).
关键词
陆基圆池
大口黑鲈
日投饲率
生长
养殖效能
land-based circular pool
Micropterus salmoides
daily feeding rate
growth
breeding efficiency