| 荷斯坦牛线性性状与产奶量的表型相关分析 |
| |
| 引用本文： | 夏婷,苏鹏程,王云,王中华.荷斯坦牛线性性状与产奶量的表型相关分析[J].中国牛业科学,2010,36(1):5-8. |
| |
| 作者姓名： | 夏婷 苏鹏程 王云 王中华 |
| |
| 作者单位： | 山东农业大学动物科技学院,山东,泰安,271018 |
| |
| 基金项目： | 山东省奶牛良种工程项目资助 |
| |
| 摘 要： | 目的]为了研究荷斯坦牛体型线性性状之间及线性性状与305d产奶量之间的表型相关。方法]选择40头第三胎健康荷斯坦泌乳牛，按9分制评分方法对15个体型性状进行评分，对功能分之间、功能分与305d校正产奶量之间进行相关性回归分析。结果]表明：305d校正产奶量与臀宽、胸宽、体深、前房附着、整体评分、乳头长度之间成极显著正相关（P〈0．01）；经自变量的筛选，建立了305d校正产奶量（Y）与胸宽（X2）、体深（X3）、臀宽（X6）、前房附着（X9）、后房高度（X10）、乳头位置（X14）之间的回归方程Y=-5529．945＋59．456X2＋3．024X3—3．069X6＋70．173X9＋19．834X10-8．892X14,R^2=0．9231。结论]依据上述六个性状可以预测荷斯坦奶牛的产奶量。
|
| 关 键 词： | 奶牛 线性性状 305 d产奶量 相关分析 |
A Phenotype Correlation Type between Individual Linear Type Traits Functional Score and 305 d Corrected Milk Yield of a Holstein Herd |
| |
| XIA Ting,SU Peng-cheng,WANG Yun,WANG Zhong-hua.A Phenotype Correlation Type between Individual Linear Type Traits Functional Score and 305 d Corrected Milk Yield of a Holstein Herd[J].China Cattle Science,2010,36(1):5-8. |
| |
| Authors: | XIA Ting SU Peng-cheng WANG Yun WANG Zhong-hua |
| |
| Institution: | College of Animal Science and Technology;Shandong Agricultural University;Tai'An;Shandong;271018 |
| |
| Abstract: | Objective]Data of linear type trait scores and 305 d milk yield records of 40 healthy Holstein cows was analyzed in the study. Method]Functional type traits were scored according to system recommended by the Canadian Holstein association, and SAS software was used to establish the regression equation between 305d milk yield and the measured linear functional type traits. Result]Results of correlation analysis indicated that there was significant difference between 305 d milk yield and rump width, chest width, body depth, udder attachment and teat length （ P 〈0.01）. A regression equation was established between 305d milk yield （Y） and chest width（X2）, body depth（X2）, rump width（X6）, fore udder attachment（X9）, rear udder height（X10）,teat placement （X14）, which was as follows. Y=-5529. 945＋59. 456 X2＋3. 024Xa-3. 069X6 ＋70. 173X9 ＋19. 834X10-8. 892X14 ,R2 =0. 9231. Conclusion]The milk yield of Holstein cattle could be predicted by the above six traits. |
| |
| Keywords: | Holstein cow Linear type trait 305 d milk yield |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国牛业科学》浏览原始摘要信息 |
| 点击此处可从《中国牛业科学》下载免费的PDF全文 |
|
