【摘要】 为探讨沙塘鳢苗种适宜生长水温,试验分别在20、23、26、29和32℃的水温下进行。试验水族箱体积为50cm×40cm×30cm,饲养30d,同一水温的每个试验组设3个重复。结果显示:在20～29℃,鱼体的增重率和增长率随着水温的增高而增长,32℃时增重率和增长率有所下降。沙塘鳢生长的适温范围为23～32℃,最适水温为(29±1)℃。更多还原

【Abstract】 On the observation of the adaptable water temperature for the juvenile Odontobutis obscura,the juvenile Odontobutis obscura was cultured at 20℃,23℃,26℃,29℃ and 32℃ in aquaria(50 cm×50 cm×50 cm) for 30 days,each treatment with three replicates.The results shows that:the absolute growth rate(AGR) and relative growth rate(RGR) are increased with the rise of temperature from 20℃to 29℃,and it declined a little at the temperature of 32℃.The adaptable water temperature for the growth of juvenile Odontobutis obscura ranged from 23℃ to 32℃,with the optimal water temperature of(29 ±1)℃.更多还原