不同饲料对凡纳对虾幼体生长与发育的影响

Effects of different feed on the growth and development of larve of Lito-peaneus vannamei

采用不同的饲料系列饲养各阶段凡纳对虾 (Lito -penaeusvannamei)的幼体和仔虾 ,实验结果表明 :在状幼体期 (Z)～糠虾幼体Ⅱ期 (M 2) ,投喂骨条藻 +人工配合饲料系列 ,比单纯投喂骨条藻或单纯投喂人工配合饲料的成活率分别高18.5%和26.7 % ;糠虾Ⅱ期 (M 2)以后单独投喂人工配合饲料或单独投喂卤虫无节幼体的成活率无明显的差别 ;在人工育苗后期 ,用人工配合饲料代替卤虫无节幼体 。

Different diet-series were used on different stages of Lito-peaneus vannamei′s larvae and post-larvae, The results were as follows: 1) From zoea to the second stage of mysis, survival rate of those fed with Genus skeletomema and artifical compound feed is 18.5% and 26.7% higher than those fed only with Genus skeletomema or artifical compound feed, respectively. 2) There was no distinct difference of survival rate while feeding only with artifical compound feed or artemia nanplii after the second stage of mysis. 3) In the later period of artifical breeding, the survival rate is constant while the artifical diet replaced the artemia nanplii.