毕业论文移动版

摘要：金鱼具有很高的观赏价值和经济价值，耗氧率是金鱼代谢的重要指标。在实验室条件下采用交叉试验设计考察了两个试验因子温度和体质量对金鱼耗氧的影响。温度（T）的设置为18℃，22℃，26℃，体质量(M)取三个水平，分别为0.88g，7.85g，14.45g三种体重规格，金鱼的耗氧率以OC表示。试验有9个处理，每个处理内有2个重复。试验结果表明，温度对耗氧率有极显著影响（P<0.01），随着温度的升高，金鱼的耗氧率以非线性方式升高；体质量对耗氧有极显著影响（P<0.01），随着体重规格的增加，金鱼的耗氧率以线性方式逐渐降低；两个因子间的互作不显著(P>0.05)。建立了金鱼的耗氧率与温度、体重规格间的模型： OC=-0.077887+0.061396T-0.016452M+8.36-5TM-1.03-3T2-1.05-5M2

该模型的决定系数高达0.998，表明模型拟合度很高。67941

毕业论文关键词：金鱼 ，耗氧率，温度，体重 

Abstract The goldfish has high ornamental value and economic value, the oxygen consumption rate is an important indicator of the metabolism of goldfish. The effects of the two experimental factors of temperature and body weight on the oxygen consumption of the goldfish cross design under laboratory conditions. Temperature (T) set of 18 degrees, 22 degrees Celsius, 26 degrees Celsius, the body mass (m) from three levels, respectively, for the skin, 7.85g, 14.45g three weight specifications, goldfish consumption oxygen rate expressed in OC. There are 9 treatments, 2 replications for each treatment. The test results show that the temperature of oxygen consumption rate is significantly different (P < 0.01), with the increase of temperature, goldfish oxygen consumption rate of increase in a nonlinear way; body mass of oxygen consumption have significantly different (P < 0.01), with the increase of weight specifications, goldfish oxygen consumption rate in linear system is gradually reduced; two factor interaction was not significant (P > 0.05). Established the goldfish the oxygen consumption rate and temperature, weight specification model: OC=-0.077887+0.061396T-0.016452M+8.36-5TM-1.03-3T2-1.05-5M2.Determine the coefficients of the model are as high as 0.998, showed that the model fittingdegree is very high.

Key words: goldfish, the oxygen consumption rate, temperature, weight

目录

摘要： I

Abstract II

1.前言 2

2.材料与方法 2

  2.1实验鱼的来源及驯化 2

  2.2器材 2

  2.3试验设计 2

  2.4耗氧率测定 3

  2.5耗氧率测定 3

  2.6数据分析 3

3.结果 3

  3.1 模型 4

    3.2.1温度对金鱼耗氧率的影响 5

    3.2.2 体重规格对耗氧率的影响 5

  3.3温度和体重规格之间的相互作用 6

讨论 7

参考文献..9致谢..11 

1.前言

金鱼（Carassius auratus）属鲤形目，鲤科，鲫属，是由鲫鱼进化而成的观赏鱼类[ ]。远在距今1560年前的晋朝就有“赤鳞鱼”——金鱼的文字记载，堪称中国的国粹[ ]。金鱼体态优美,品种繁多,其体色有红、黄、蓝、紫、黑、白、双色、三色、五花色等，其体形有狮头、高头、水泡、龙睛、绒球、珍珠鳞、蝶尾、虎头等，具有极高的观赏价值。然而随着人民生活水平的提高和国际贸易的发展,金鱼在国内外市场上需求量与日俱增,中国金鱼在国际市场上享有盛誉,每年都有大量出口,远销日本、欧美各国。金鱼不但可以换取外汇,创造效益,同时也增进了和各国人民之间的友谊[ ]。近年来,已远不能满足国内外市场的需要,所以发展金鱼养殖业有着广阔的前景[ ]。论文网 (责任编辑：qin)