蜕皮激素对克氏原螯虾蜕皮和生长的影响

Effects of Ecdysterone on the Molt and Growth of Procambarus Clarkii

以蛋白水平为28%的配合饲料为对照组,添加0.50μg/g蜕皮激素的配合饲料为实验组,研究蜕皮激素对克氏原螯虾蜕皮和生长的影响.结果显示:与对照组相比,同样条件下实验组体重净增量提高了15.46%、特定增重率提高了12.08%、成活率提高了11.63%、蜕皮率提高了50%、饲料系数降低了29.51%;实验组体长净增量提高了38.71%、特定增长率提高了51.61%,存在差异性显著(P<0.05).实验表明,在实际养殖过程中为了加快克氏原螯虾幼虾生长,可以在饲料中添加适量蜕皮激素.

The Ecdysterone was added into the diets of 28% protein level for Procambarus clarkii to investigate its effects on the growth and molt of Procambarus clarkii.The results showed： the Ecdysterone group was increased by 15.46%,12.08%,11.63%,50% in the net increase of the body weight,the specific body weight growth rate,the survival rate,the molt frequency;the feed coefficient decreased by 29.51%,11%;the net increase of the body length and the specific body length growth rate increased by 38.71%,51.61%（P0.05）,comparing with the control group.This study indicated that proper addition of Ecdysterone into the feed was appropriate for the culture of Procambarus clarkii.