浙江农业学报

• 动物科学 • 上一篇    下一篇

鲫鱼核酸和蛋白浓度与形态性状及体质量的关系

  

  1. (1 江苏省滩涂生物资源与环境保护重点建设实验室, 江苏 盐城 224002; 2 盐城师范学院 生命科学与技术学院, 江苏 盐城 224002)
  • 出版日期:2015-03-25 发布日期:2015-03-31

Analysis of relationships between nucleic acid and protein concentration and orphological characters and body weight of Crucian carp

  1. (1 Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng, Jiangsu 224002, China; 2 College of Life Science and Technology, Yancheng Teachers University, Yancheng, Jiangsu 224002, China)
  • Online:2015-03-25 Published:2015-03-31

摘要: 测定了鲫鱼的体厚、体高、体长、全长4个形态性状和体质量,以及肌肉中的RNA浓度,DNA浓度和总蛋白浓度,分析了上述形态性状和生化指标与体质量的关系。结果表明,体厚、体长、全长、DNA浓度和protein/DNA与体质量均呈显著相关(P<005);体厚对体质量的直接作用最大(0587), DNA浓度对体质量的直接作用为负值,主要通过体厚间接影响体质量;对鲫鱼体质量的决定系数由大到小的顺序为DBT>DRNA/protein>DDNA;两两性状对体质量的共同决定系数中,体厚与DNA浓度对体质量的决定系数最大(0313),DNA浓度与 RNA/protein对体质量的决定系数最小(0007)。通过多元回归分析建立了体质量与形态性状和生化指标间的关系式,结果显示,DNA浓度与体质量成幂函数关系,protein/DNA比值与鲫鱼体质量成指数函数关系,其他指标与体质量均呈多项式关系。

关键词: 鲫鱼, 体质量, 形态性状, 生化指标

Abstract: Morphological characters and biochemical indicators, including body thickness (BT), body height (BH), body length (BL), total length (TL), body weight (BW) and concentrations of RNA, DNA and total protein in the muscle of Crucian carp, were determined. The relationships among above indicators were also analyzed. Data revealed that five indicators of BT, BL, TL, DNA concentration and protein/DNA had significant correlation with BW (P<005). The direct effect of BT on BW was the highest (0587), while the direct effect of DNA concentration on BW was negative, which influenced BW mainly through BT. The order of decision coefficients among above indicators with BW was DBT>DRNA/protein>DDNA. The codetermination effects on BW was the maximum(0313) for BT and DNA concentration, and the minimum (0007) for DNA concentration and RNA/protein. The relation between weight and morphological characters and biochemical indicators was established by multiple regression analysis. The results showed that power function relationship between DNA concentration and BW, exponential function relationship between protein/DNA and BW, and multiple regression relationship among the other indicators and BW were observed, respectively.

Key words: Crucian carp, body weight, morphological characters, biochemical indicators