不同养殖模式对拉萨裸裂尻仔鱼存活和生长的影响

Effects of different culture modes on the survival and growth of Schizopygopsis younghusbandi larvae

为研究不同养殖模式对拉萨裸裂尻鱼存活和生长的影响,试验采用塑料盆、室内平列槽、室外网箱3种养殖方式进行拉萨裸裂尻仔鱼养殖,试验周期为35 d,每7 d测量一次仔鱼全长及体质量,计算存活率、增长率及增质量率。结果显示:从试验开始至结束,平列槽与室外网箱死亡率均显著低于塑料盆(p<0.05),室外网箱增质量率高达554.55%,增长率高达53.13%,均显著高于其他养殖模式(p<0.05)。结果表明,3种养殖模式中,室外网箱养殖的拉萨裸裂尻仔鱼效益最佳,适宜拉萨裸裂尻仔鱼的前期培育。

In order to study the effects of different culture modes on the survival and growth of Schizopygopsis younghusbandi larvae,three culture modes including plastic basin,indoor horizontal tank and outdoor cage were used in the experiment.The test period is 35 days.Length and body weight of larvae were measured every 7 days.Survival rate,growth rate and weight gain rate were calculated The results showed that the mortality rates of horizontal tank and outdoor cage were significantly lower than that of plastic basin(p<0.05),the weight gain rate of outdoor cage was as high as 554.55%,and the growth rate was as high as 53.13%,which were significantly higher than other culture modes(p<0.05).The results showed that among the three culture modes,the outdoor cage culture had the best efficiency,and was suitable for the early cultivation of Schizopygopsis younghusbandi larvae.