期刊论文

Characterization of external morphologies and muscle texture of Carassius auratus var. Dongting

中文

湖南农业大学学报(自然科学版)

1007-1032

2019

45

6

650-656

10.13331/j.cnki.jhau.2019.06.014

国家大宗淡水鱼产业体系常德综合试验站项目（CARS–45–48）； 湖南省科学技术厅重大专项课题（2017NK1031）；

本校为第一机构

从北民湖采集300尾洞庭青鲫,对其进行形态学性状、生长和肉质特性分析。结果显示:各年龄组形态指标的变异系数间的差异无统计学意义,表明其性状稳定;通过Von Bertalanffy生长公式拟合得出洞庭青鲫的渐近体长和体质量分别为308.41 mm和1 075.00 g,生长系数和理论生长起点年龄分别为0.369 5和–2.407 0龄,体质量生长拐点为0.17龄;体长体质量关系表明,洞庭青鲫在1～2龄生长迅速,且各年龄段洞庭青鲫体型均呈现等比增长趋势;通过鳞片鉴定的该群体中2龄群体为优势群体,占比66.67%;该群体的雌雄性别组成为10∶1;洞庭青鲫肌肉硬度和弹性分别为（2 822.95±556.97） g和1.317±0.01。综上可知,洞庭青鲫是...

Three hundred Carassius auratus var. Dongting from Beimin Lake were collected to analyze their morphological traits, growth performance and muscle texture.The results showed that the coefficient of variation among the studied age groups were not significant, indicating that their characters were stable. By constructing the Von Bertalanffy equation, the asymptotic body length and weight were 308.41 mm and 1 075.00 g, respectively. The growth coefficient and theoretical growth starting age were 0.369 5 and –2.407 0 years old, respectively, and t...