Abstract: The effect of starvation and refeeding on excretion of nitrogen and phosphorus in Japanese flounder Paralichthys olivaceus(body weight of 69.56 g±2.35 g)were investigated by still water experiment method in a laboratory at water temperature of(15.0±1.0)℃.The results showed that the excretion rate of N and P was sharply decreased in the initial starvation and became relatively stable with the starvation preceeded.After the starved fish were refed,the excretion rates of N and P in the starved fish in the treatment groups were returned to those in the control group,indicating that there were significant effect of refeeding on the excretion of N and P(P＜0.05).The maximal N and P excretion rates were found at 10:00 of 4 h after refeeding in the fed and starved fish,and decreased gradually with the minimum at 18:00.There was no significance in diurnal N excretion during the refeeding period(P＞0.05).However,the average P excretion was found slightly higher(P＜0.05)in the day time than during the night.
王荦, 吴立新, 李家庆, 吴玉波, 陈晶. 饥饿及再投喂对牙鲆幼鱼氮、磷排泄的影响[J]. 大连海洋大学学报, 2011, 26(2): 114-118.
WANG Luo, WU Li-xin, LI Jia-qing, WU Yu-bo, CHEN Jing. Effect of starvation and refeeding on excretion of nitrogen and phosphorus in Japanese flounder Paralichthys olivaceus. Journal of Dalian Ocean University, 2011, 26(2): 114-118.
2011, Vol. 26 
