水生生物学报2012，Vol.36Issue(6)：1011-1017,7.DOI:10.3724/SP.J.1035.2012.01011
饲料中不同淀粉水平对中华绒螯蟹幼蟹生长、饲料利用的影响
EFFECT OF DIETARY STARCH LEVEL ON GROWTH, FEED UTILIZATION AND HEPATIC GLYCOGEN OF ERIOCHEIR SINENSIS
摘要
Abstract
In order to investigate the utilization of dietary starch by Eriocheir sinensis, seven isonitrogenous (crude protein: 35%) and isolipid (crude lipid: 6%) diets that contained different starch levels (4%, 10%, 16%, 22%, 28%, 34% and 40%) were formulated. Different diets were fed to crabs for 8 weeks. In order to avoid cannibalism, 40 crabs were reared individually in 40 small plastic tanks (25 cm* 17 cm* 15 cm)with several holes on the bottom. The results showed that feeding rates of the crabs that were fed with 34%?0% dietary starch were significantly lower than those fed with 4%?6% dietary starch (_P<0.05). Dietary starch increased specific growth rates of body weight and carapace length. Specific growth rate of body weight reached to the highest at 34% dietary starch while specific growth rate of carapace length was the highest at 22% dietary starch(_P<0.05). Feed efficiency increased with increasing dietary starch. High dietary starch obtained higher protein retention. Hepatosomatic index of the crabs fed with 16% dietary starch was lower while molting frequency and survival werehigher. Crab body dry matter, protein, lipid and ash were higher at the group fed with higher dietary starch. Hepatopancreatic trypsin activity was higher at 16% dietary starch (P>0.05). Liver gly-cogen content increased linearly with dietary starch (y = 0.2268x + 17.256, R2 = 0.9453, n=l, P<Q.Q5). Quadratic regression between specific growth rate and dietary starch showed that optimal dietary starch content for maximum growth of juvenile mitten crab was 25.6%.关键词
中华绒螯蟹/淀粉/特定增长率/肝糖原Key words
Eriocheir sinensis/ Starch/ SGR/ Liver glucogen分类
农业科技引用本文复制引用
王耀华,解绶启,朱晓鸣,杨云霞,韩冬..饲料中不同淀粉水平对中华绒螯蟹幼蟹生长、饲料利用的影响[J].水生生物学报,2012,36(6):1011-1017,7.基金项目
省部共商项目长江中游地区特色水产品高效生产关键技术研究与示范(2007BAD37B)资助 （2007BAD37B）
