摘要
选用豆粕-鱼粉型饲料,分别添加0.0、0.5、1.0、2.0和4.0g·kg-1的复合中草药(CTMs),检测其促生长作用及其对消化酶活性的影响。结果显示,生长第1阶段:2组特殊生长率(SGR)、饲料系数(FCR)和蛋白质效率比(PER)均显著大于对照组(P<0.05),与余下三组差异不显著(P>0.05);2组、3组体长增长率(LGR)与对照组差异显著(P<0.05);2组、3组存活率与5组差异显著(P<0.05)、与对照组差异极显著(P<0.01);各组间相对增重率(RWG)和日生长速度(AGR)差异不显著(P>0.05)。生长第2阶段:2组AGR与对照组差异极显著(P<0.01),与其他三组差异不显著(P>0.05);2组、3组FCR分别与对照组差异显著(P<0.05)和差异极显著(P<0.01);2组、3组PER与对照组差异显著(P<0.05);和对照组相比,4组成活率提高显著(P<0.05),2组和3组提高极显著(P<0.01);RWG和LGR变化规律与第一阶段相似;各组间SGR无显著差异(P>0.05)。CTMs提高消化酶活性,对蛋白酶活性影响明显。
LitoPenaeus vannamei were fed with formulated diet which had been added with Chinese Traditional Medicines （CTMs） at different contents of 0.0, 0.5, 1.0, 2.0 and 4.0 g ·kg^-1 respectively. Growth indexs and activity of digestive enzymes were determined in 58 d. The results showed that in the 1st stage, SGR, FCR and PER of group 2 were better than that of control group respectively （P 〈0.05）, but no significant differences between group 2 and the other trial groups （P 〉0.05）. LGR was significantly different between group 2, group 3 and control group （P 〈0.05）. There were no significant differences for RWG and AGR between trial groups and control group （P 〉0.05）. Survival rate was significantly different between group 2, group 3 and group 5 （P 〈0.05）, utmost significantly different between group 2, group 3 and group5 （P 〈0.01）. In the 2nd stage, AGR of group 2 was utmost significantly different from control group（P 〈0.01）, yet, no significantly difference among all trial groups （P 〉0.05）. FCR of group 2 and group 3 was significantly different from control group （P 〈0.05） and utmost significantly different （P 〈0.01）, respectively. PER of group 2 and group 3 was significantly different from control group （P 〈0.05）. Compared with groupl, survival rate of group 4 increased obviously （P 〈0.05）, and group 2,group 3 increased utmost obviously （P 〈0.01）. The changed rule of RWG and LGR was similar to the 1st stage. SGR was nosignificant different among all trial groups （P 〉 0.05）. In two stages, TCMs may enhance activitiy of digestive enzymes and activities of protease obviously.
出处
《广东海洋大学学报》
CAS
2007年第1期22-26,共5页
Journal of Guangdong Ocean University
基金
广东省重大科技兴渔项目(B200201A01)
关键词
凡纳滨对虾
生长
消化酶
影响因素
饲料添加剂
复合中草药
LitoPennnaus vannamei
growth
digestive enzyme
effect factors
feed additive
Traditional Chinese Medicines（CTMs）
