摘要
将江黄颡鱼放在 5组不同水温 (2 0℃、2 3℃、2 6℃、2 9℃、32℃ ) ,体积为 10 0cm× 4 0cm× 5 0cm的水族箱中饲养 4 5d ,每组设三个重复。试验结果表明 :在 2 0～ 2 9℃下 ,鱼体的绝对增重率和相对增重率随着水温的升高而增大 ,但到 32℃时增重率有所下降 ;江黄颡鱼生长的适温范围为 2 3～ 32℃ ,最适水温为 2 9℃± 1℃。
Pseudobagrus vachelli (Richardson) was cultured at five different water temperatures (20℃,23℃,26℃,29℃ and 32℃) in aquaria (100 cm×40 cm×50 cm) for 45 days (three replicates eath treatment). This experiment indicated that absolute growth rate (AGR) and relative growth rate (RGR) are increased with the rise of temperature from 20℃ to 29℃ and they declined a little at 32℃. The adaptable water temperature for the growth of Pseudobagrus vachelli ranged from 23℃ to 32℃ with the optimum water temperature of 29℃±1℃.
出处
《水产科技情报》
2003年第1期13-15,共3页
Fisheries Science & Technology Information
关键词
江黄颡鱼
水温
生长
增重率
Pseudobagrus vachelli Water temperature Growth
