大蒜素对杂交鲟生长性能的影响

Effect of Allicin on the growth performance of hybrid sturgeon

试验旨在研究不同剂量的大蒜素(Allicin)对杂交鲟(西伯利亚鲟♀×施氏鲟♂,Acipenser baerii♀×Acipenser schrencki♂)生长性能的影响,探讨大蒜素在杂交鲟养殖中的最适添加量。试验选择400尾健康的杂交鲟幼鱼,按照单因素设计,均分4组,每组100尾。各组杂交鲟分别投喂含有0mg/kg(对照组)、25mg/kg(试验1组)、50mg/kg(试验2组)、100mg/kg(试验3组)大蒜素的试验饵料。饲喂周期为84d。试验结束,测定各组杂交鲟的增重率、饵料系数、成活率等数据。结果表明,试验2组杂交鲟的试验末重比对照组显著提高了11.51%(P<0.05);增重率显著比对照组提高了16.02%(P<0.05);肝体比显著比对照组降低了23.27%(P<0.05);饵料系数显著比对照组减少了5.84%(P<0.05);而大蒜素对杂交鲟的成活率及脏体比未产生显著性的影响。研究表明,在杂交鲟饵料中添加50mg/kg的大蒜素可以有效改善杂交鲟幼鱼的生长性能。

The experiment aimed to investigate the effects of different doses of allicin on the growth performance of hybrid sturgeon(Acipenser baerii♀×Acipenser schrencki♂)and to explore the optimal amount of allicin to be added in hybrid sturgeon culture.In the experiment,400 healthy juvenile hybrid sturgeon were selected and divided into four groups of 100 sturgeon each according to a one-way design.Each group was fed with 0mg/kg(control group),25mg/kg(test group 1),50mg/kg(test group 2)and 100mg/kg(test group 3)of allicin.At the end of the experiment,the weight gain,bait coefficient and survival rate of the crossbred sturgeon in each group were measured.The results showed that the test end weight of hybrid sturgeon in the test 2 groups increased significantly by 11.51%(P<0.05)compared to the control group;the weight gain rate increased significantly by 16.02%(P<0.05)compared to the control group;the liver-to-body ratio decreased significantly by 23.27%(P<0.05)compared to the control group;the bait coefficient decreased significantly by 5.84%(P<0.05)compared to the control group;and the effect of allicin on the survival rate and the survival rate of hybrid sturgeon was significantly higher(P<0.05)than that of the control group.The study showed that there was no significant effect of allicin on the survival rate and dirty body ratio of hybrid sturgeon.The study showed that the addition of 50mg/kg of allicin to the bait of hybrid sturgeon was effective in improving the growth performance of juvenile hybrid sturgeon.