摘要
设计中草药配方Ⅰ和Ⅱ,分别以0.5%、1%、2%剂量添加到基础饲料中,连续投喂异育银鲫2个月后,测定鱼体的相对增重率、肠道和肝胰脏的蛋白酶活性及消化吸收率。结果表明,中草药添加剂能够极显著地影响异育银鲫的生长、肠道和肝胰脏的蛋白酶活性及蛋白质的消化吸收率(P<0.01)。配方Ⅰ以1%组和2%组、配方Ⅱ以2%组的生长最佳,相对增重率分别比对照组提高23.47%、32.74%和47.06%。中草药添加剂对肠道、肝胰脏蛋白酶活性及消化吸收率的影响与生长相似,对照组肠道蛋白酶活性为10.54,配方Ⅰ中1%组为20.33、2%组为22.79,配方Ⅱ中2%组为25.68;肝胰脏蛋白酶活性,对照组为8.54,配方Ⅰ中1%组为14.13、2%配方Ⅰ组为16.59,2%配方Ⅱ组为20.36。对照组的蛋白质消化吸收率为78.15%,1%配方Ⅰ组为84.38%,2%配方Ⅰ组为86.98%,2%配方Ⅱ组为88.19%。因此中草药添加剂提高蛋白酶活力、促进蛋白质的消化吸收,是促进鱼体生长的重要因素。
Allogynogenetic crucian carp(body weight 1.6-2.2g) were fed with formulated diet which had been added with Chinese herb(additiveⅠ, additive Ⅱ) at different contents of 0.5%,1% and 2% respectively. Growth rate, apparent digestibility of protein and protease activity in intestine and hepatopancreas were determined in two months. The results showed that Chinese herb additives significantly increased growth rate, protease activity in intestine and hepatopancreas, and apparent protein digestibility of allogynogenetic crucian carp(P<0.01). The growth rates of the treated groups 1% of additive Ⅰ, 2% additiveⅠand 2% additiveⅡ were 23.74%, 32.74% and 47.06% higher than those of the control respectively. The effect of the additives on protease activity in intestine and hepatopancreas, and apparent digestibility of protein was the same as the growth rate. Protease activities of the control and the treated groups 1% of additive Ⅰ,2% additiveⅠ, 2% additiveⅡ in intestine were 10.54, 20.33, 22.79, 25.68, and those in hepatopancreas were 8.54, 14.13, 16.59, 20.36 respectively. Apparent protein digestibities of these groups were 78.15%, 84.38%, 86.98% and 88.19%. Therefore the increase of the protease activites and absorbabilities was an important factor to increase fish growth.
出处
《水产学报》
CAS
CSCD
北大核心
2002年第6期551-555,共5页
Journal of Fisheries of China
基金
上海市科委科技攻关项目(013212101)
关键词
中草药添加剂
异育银鲫
生长
蛋白酶活性
消化率
吸收率
allogynogenetic crucian carp
Chinese herb additives
growth
protease activity
digestibility
