南方农业学报2013，Vol.44Issue(6)：1036-1040,5.DOI:10.3969/j:issn.2095-1191.2013.6.1036
黄鳝仔鱼饥饿试验与不可逆点的确定
Experimental starvation on Monopterus albus larvae and determination of the point of no return
摘要
Abstract
[Objective]The initial feeding time and point of no return (PNR) for the larvae of Monopterus albus were determined to provide references for improving survival rate of artificial eel seedling and bait utilization rate.[Method]The comparative experiment on starvation and normal feeding of larvae was carried out to investigate the effects of starvation on feeding.Through observing absorption of yolk sac,the growth of larvae and the change of initial feeding rate,the PNR was determined.[Result]At the water temperature of 25-28℃,the larvae started to search for food on the 6th day.The volume of yolk sac vanished on the 9th day.The feeding rate reached the maximum rate of 96％ on the 10th day.The PNR appeared on the 17th day.It also showed that under starvation,the total length of larvae reached a maximum (3.20±0.0760 cm) on the 9th day.Afterwards its length decreased slightly and kept stable.However,the weight of larvae reached a maximum (0.0205±0.0533 g) on the 8th day and decreased constantly.The body fatness displayed a downside trend all the way.At the PNR,its body color gradually turned dark.Its body improperly deformed.It would tremble,turn over and even die under disturbance.[Conclusion]At the water temperature of 25-28℃,the best feeding time was on the 9th day,and the PNR arrived on the 16th day.关键词
黄鳝仔鱼/饥饿/不可逆点/摄食率/肥满度Key words
Monopterus albus larvae/starvation/point of no return (PNR)/feeding rate/fatness分类
农业科技引用本文复制引用
段国庆,江河,胡王,凌俊,胡玉婷..黄鳝仔鱼饥饿试验与不可逆点的确定[J].南方农业学报,2013,44(6):1036-1040,5.基金项目
农业部行业(农业)科研专项项目(201003076) （农业）
安徽省科技攻关项目(12010302056) （12010302056）
安徽省农业科学院院长青年创新基金项目(12B0516) （12B0516）
安徽省农业科学院黄鳝创新团队科研计划项目(12c0501) （12c0501）
