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在饲料中分别添加w=20%的葡萄糖、小麦淀粉、玉米淀粉、马铃薯淀粉、蔗糖、糊精,饲养初始质量为(0 78±0 01)g的南美白对虾,经过56d的生长试验,观察不同糖源对于南美白对虾的生长、成活率、机体营养组成的影响。实验结果表明,南美白对虾对不同糖源的利用表现出差异性,蔗糖组的成活率、特定生长率、饲料效率均最高;其他各组差异不显著。不同糖源对南美白对虾生长的影响依次为蔗糖>玉米淀粉>小麦淀粉>糊精>葡萄糖>马铃薯淀粉;对南美白对虾成活率的影响依次为蔗糖>马铃薯淀粉>玉米淀粉>小麦淀粉>糊精>葡萄糖。不同糖源对南美白对虾全虾蛋白质含量和水分含量的影响差异不大,但是糊精和马铃薯淀粉组的全虾脂肪含量明显低于其他各组,蔗糖组的全虾灰分与其他各组都没有显著性差异,葡萄糖组最高,糊精组最低。
The feed was fed with 20% glucose, wheat starch, corn starch, potato starch, sucrose, dextrin, and the initial mass of (0 78 ± 0 01) g P. vannamei, respectively. After 56 days of growth, Effects of different sugar sources on the growth, survival rate and nutritional composition of P. vannamei. The experimental results show that the utilization of different sugar sources of P. vannamei shows the difference, and the sucrose group has the highest survival rate, specific growth rate and feed efficiency. The other groups have no significant difference. The effects of different sugar sources on the growth of Penaeus vannamei were as follows: sucrose> corn starch> wheat starch> dextrin> glucose> potato starch; the effects on the survival rate of Penaeus vannamei were sucrose> potato starch> corn starch> wheat starch> paste Fine> glucose. The effect of different sugar sources on the protein content and water content of whole shrimp was not significant, but that of dextrin and potato starch was significantly lower than that of other groups There was no significant difference between glucose group and dextrin group.