摘要
分析'蟹龙宫'饲养中华绒螯蟹(Eriocheir sinensis)在一个蜕壳周期的蜕壳与生长情况。结果发现:'蟹龙宫'饲养中华绒螯蟹蜕壳后体质量平均增长率为33.19%,头胸甲长、头胸甲宽和体高的平均增长率为12.12%~14.97%,平均蜕壳间期为59.35 d。蜕壳前平均肥满度达60.84%,头胸甲的色度值(RGB)平均为109.17,蜕皮激素(EH)含量达14.18 IU/mL。试验河蟹在蜕壳前生长性状、EH含量和蜕壳间期长短与蜕壳后的增长率不存在显著相关性(P>0.05)。在'蟹龙宫'的个体养殖系统中,中华绒螯蟹的肥满度达60%,蜕皮激素含量升至14 IU/mL时会启动蜕壳。
The molting and growth characters of Chinese mitten crab(Eriocheir sinensis)reared in the'Crab Palace'system for one molting cycle were studied.The results showed that the average increment rate of body weight of the crab was 33.19%,the average increment rate of carapace length,width and height ranged from 12.12%to 14.97%,and the average molting interval was 59.35 d.The average condition factor before molting was 60.84%,and the mean RGB value of body color in back carapace was 109.17,and the content of ecdysone hormone(EH)reached 14.18 IU/mL.In the'Crab Palace'system,no significant correlation(P>0.05)was observed between the growth status,EH content,molting interval before molting and increment rate of the growth traits after molting(P>0.05).The Chinese mitten crab reared in the'Crab Palace'system would start molting when its condition factor reached 60%,and ecdysone hormone content was more than 14 IU/mL.
作者
李志华
卢德胤
刘兆强
杨鹤
王军
王成辉
LI Zhihua;LU Deyin;LIU Zhaoqiang;YANG He;WANG Jun;WANG Chenghui(Key Laboratory of Freshwater Fisheries Germplasm Resources,Ministry of Agriculture and Rural Affairs,Shanghai Ocean University,Shanghai 201306,China;National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai 201306,China;Shanghai Engineering Research Center of Aquaculture,Shanghai Ocean University,Shanghai 201306,China)
出处
《上海海洋大学学报》
CAS
CSCD
北大核心
2019年第4期511-518,共8页
Journal of Shanghai Ocean University
基金
上海市中华绒螯蟹现代农业产业技术体系建设项目(沪农科产字2018-4号)
上海市科技兴农重点攻关项目(2017-02-08-00-10-F00076)
上海市科委项目(13DZ2251800,16391905300)
关键词
中华绒螯蟹
个体养殖
生长
体色
肥满度
激素
Chinese mitten crab
individual cultivation
growth
body color
condition factor
hormone
