基于主成分分析构建大白猪一般抗病力的评估模型  

Assessment Model of General Disease Resistance in Yorkshire Based on Principal Component Analysis

作　　者：夏日炜 孙丽[1] 殷学梅[1] 程洪青 吴圣龙[1,3] 包文斌[1,3] 

机构地区：[1]扬州大学动物科学与技术学院,扬州225009 [2]扬州创日畜牧科技有限公司,扬州225009 [3]扬州市种猪繁育工程技术研究中心,扬州225009

出　　处：《中国畜牧兽医》2015年第4期986-990,共5页China Animal Husbandry & Veterinary Medicine

基　　金：江苏省科技支撑计划(BE2014357;BN2013062;BE2014328);常州市科技支撑计划(CE2013011);扬州大学新世纪人才工程

摘　　要：为构建大白猪一般抗病力的评估模型,本研究分别检测了30日龄大白猪血清中IL-1β、IL-4、IL-6、IL-8、IL-10、TGF-β、TNF-α和IFN-γ8个重要细胞因子的浓度,并对这8个指标进行了主成分分析。结果显示,选取前5个特征值作为5个主成分(累计贡献率达到87.721%),基本上反映了原先免疫指标的全部信息;通过建立主成分综合评价模型,比较30日龄腹泻及健康大白猪断奶仔猪的主成分综合得分,健康组断奶仔猪综合得分为0.080,而腹泻组断奶仔猪综合得分为-0.009。本研究初步确定了影响大白猪一般抗病力的主成分,并且对其进行了初步验证,为今后大白猪一般抗病力的早期选育提供了一定的指导和依据。In order to construct the assessment model of general disease resistance in Yorkshire, eight important cytokines levels （IL-1β, IL-4, IL-6, IL-8, IL-10, TGF-β, TNF-α and IFN-γ） were detected in 30-day-age Yorkshire piglets, respectively, and then the principal component analysis was carried out on the immune traits. The results showed that fore 5 character values were select- ed as the principal components （occupied 87. 721% of accumulative contribution rate）, and these five components contained nearly all the original information. The combined scores of diarrheal and health weaning piglets in 30-day-age were compared by the assessment model in different genotype population, and the results showed that the combined score of weaning piglets of health group was 0. 080,and weaning piglets of diarrheal group was -0. 009. This study initially identified the main components which affected the general disease resistance of Yorkshire, and made the preliminary verification of it. The result provided some guidance and theoretical basis for the early disease resistance breeding of Yorkshire in the future.

关 键 词：猪 一般抗病力 主成分分析 

分 类 号：S828[农业科学—畜牧学]