种用鸵鸟体质量体尺与生产性能的相关及回归分析  

Correlation and Regression Analysis on the Production Performance and Body Weight and Body Size of Seed Ostriches

作　　者：邓铸疆[1] 任战军[1] 王洪亮[1] 王乐[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《西北农业学报》2009年第1期45-47,55,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：对135只种用鸵鸟(其中雌鸟91只,雄鸟44只)体质量、体尺及生产性能指标测量和相关及回归分析的结果表明:雌鸟的体质量与体高、体长、体宽、颈长、管围都呈正相关;雄鸟的体质量与体高、体长、体宽、管围呈正相关,而与颈长呈负相关;雌鸵鸟产蛋性能只与颈长表现出显著的正相关,与体高、体质量和管围相关性较小,与体长、体宽表现出负相关;雌、雄鸵鸟体质量与体尺间分别建立回归方程为:Y=-85.59+0.62X1+2.01X2+2.68X3(P<0.05)(Y为体质量,X1为体长,X2为体宽,X3为管围)和Y=-8.64+1.21X1+0.51X2+0.98X3(P<0.05)(Y为体质量,X1为体高,X2为体长,X3为颈长)。145 seed ostriches （including 91 females, 44 males） were used to measure their body weight, body size and performance indicators, and then analysis these data with correlation and regression analysis. The results indicated that： in females body weight is positively correlated with body height, body length, body width, neck length and the circumference; in males, body weight is positively correlated with body height, body length, body width, the circumference, and is negatively correlated with neck length; in female ostrich, there is significantly positive correlation only between laying performance and neck length, and less correlations between laying performance and body height, body weight, the circumference, and negative correlation between laying performance and body length, width. The regression equation between body weight and body size were established respectively both on male and female ostrich as follows： Y= -85. 59＋0. 62X1 ＋2.01X2 ＋2. 68X3 （P〈 0.05） （Y-weight X1-body length, X2--body width, X3-circumference）,and Y-=--8.64＋1.21X1 ＋0.51X2＋0.98X3 （P〈0.05）（Y-weight, X1-body height, X2- body length, X3-neck length）.

关 键 词：鸵鸟 体尺 相关分析 回归分析 

分 类 号：S839[农业科学—畜牧学]