摘要
为了测试选育中华绒螯蟹‘长江一号’的生长性能,于2009—2010年通过在相同养殖环境、相同饲养管理、相同养殖密度的条件下,采用现实生产中先进的中华绒螯蟹生态养殖技术主导模式,进行‘长江一号’中华绒螯蟹生产性对比养殖试验。结果表明,1龄蟹种培育的平均规格、存活率,选育系与对照系无显著差异;性早熟比例,选育系分比对照系降低5%;2龄成蟹养殖,‘长江一号’选育系比对照系生长快,平均体重增长快21.64%,呈极其显著差异(P<0.01),单产平均提高21.22%。选育系的平均日增重率比对照组提高了22.73%,平均体重变异系数比对照组降低19.14%。连续2周年的生产性对比试验结果表明,中华绒螯蟹‘长江一号’生长快、群体规格整齐、养殖存活率高、增产效果明显,深受广大养殖户的欢迎,市场应用和产业化前景广阔。
Several experiments had been conducted to study the growth performance between the new Erocheir sinensis strain Chang Jiang 1 and the common crab under the conditions of the same culture environment, the same feeding management, and the same stocking density. It was found that insignificant differences in the average size and the survival rate were found between the Chang Jiang 1 and the common crab at the age of one year. The proportion of precocious puberty of Chang Jiang 1 was reduced by 5%, as compared to the common crab. The growth was faster for the Chang Jiang 1 than for the common crab at the age of two years. Meanwhile, its average liveweight was increased by 21.64%, such difference reached an extremely significant level, and its yield was increased by 21.22% . The daily growth rate of F 5 was improved by 22.73% and the variation coefficient of liveweight was reduced by 19.14% . Continuous production of the second anniversary of the comparative test results showed that the Chang Jiang 1 grew fast, survival rate was high, and yield increasing effect was significant. So, the Chang Jiang 1 holds wide market prospects.
出处
《农学学报》
2012年第1期53-57,共5页
Journal of Agriculture
基金
国家"十一五"科技支撑项目"长江水系河蟹良种选育与育种"(2006BAD01A1305)
江苏省科技支撑计划项目"优质高产河蟹提纯保种与新品系选育"(BE2009336)
江苏省水产三项工程项目"江苏河蟹种质资源开发与家系选育"(K2008-2)
关键词
中华绒螯蟹
'长江一号’
生长性能
变异系数
Erocheir sinensis
Chang Jiang 1
Growing Performance
Variation Coefficients
