摘要
[目的]比较大鳞副泥鳅雌雄个体的形态特征。[方法]采用主成分分析与t检验方法,比较了大鳞副泥鳅雌雄个体的10个外部形态特征。[结果]t检验结果表明,10个比值性状中有3个比值性状表现出极显著差异(P<0.01),1个比值性状表现出显著差异(P<0.05),其他性状差异不显著。主成分分析构建了4个主成分,贡献率分别为31.151%、18.844%、12.324%和10.169%,4个主成分的累积贡献率为72.487%,雌雄个体在主成分分析图上存在重叠交错态势,差异不显著,与t检验结论相一致。[结论]该研究结果为大鳞副泥鳅的养殖提供理论基础。
[Objective] The aim was to compare the morphology difference between sexual dimorphism of Paramisgurnus dabryanus Sauvage.[Method] The comparison of 10 morphological characteristics between sexual dimorphism of P.dabryanus was conducted with principal component analysis and t-test methods.[Result] The results of t-test indicated that three of 10 morphological characteristics showed extremely significant difference（P0.01）and one of 10 morphological characteristics was significantly different（P0.05）.Principal component analysis revealed four principal components,the contribution rate of which was 31.151%,18.844%,12.324% and 10.169%,respectively.The cumulative contribution rate had reached 72.487%.The morphological variations between sexual dimorphism were not significant,which was consistent with that of t-test.[Conclusion] The result in this study had provided theoretical basis for the breeding of P.dabryanus.
出处
《安徽农业科学》
CAS
北大核心
2011年第1期289-290,294,共3页
Journal of Anhui Agricultural Sciences
基金
山东省科技攻关项目
关键词
大鳞副泥鳅
形态性状
主成分分析
T检验
Paramisgurnus dabryanus Sauvage
Morphological trait
Principal component analysis
t-test
