母猪产木乃伊性状的广义线性模型分析  

Generalized Linear Mixed Models Analysis of Mummy Trait in Swine

作　　者：沙日耐[1] 贾青[2] 俄广鑫[1] 王晨[1] 

机构地区：[1]中国农业科学院北京畜牧兽医研究所,北京100193 [2]河北农业大学,河北保定071000

出　　处：《中国畜牧兽医》2014年第5期258-261,共4页China Animal Husbandry & Veterinary Medicine

基　　金：河北省现代农业产业技术体系生猪产业创新团队建设专项资金

摘　　要：为了准确估计各固定效应及遗传效应对木乃伊发生的影响,本研究通过对数据筛选并利用广义线性模型对品种、配种月份、产仔月份、胎次进行了分析,并进一步估计了木乃伊发生的遗传力。结果显示、品种对木乃伊发生的影响差异不显著(P=0.375)。配种月份在8、10月时对产木乃伊的影响最大,其固定效应值分别为1.592和1.658。产仔月份在5、7月时对木乃伊的产生有着较大影响,其固定效应值分别为1.399和0.906。第1胎次对木乃伊的影响在前4胎中较大,固定效应值为-0.507,而第5胎次影响为最大,固定效应值为0.073,之后随着胎次的增加对木乃伊的发生影响降低。木乃伊发生的遗传力为0.38。通过此项研究发现除疾病因素外,综合环境因素对木乃伊的发生影响最大(P<0.01);其次为胎次(P<0.05);而品种对木乃伊的发生无显著影响(P>0.05)。In order to accurately estimate the fixed and genetic effect of mummy we used generalized linear models analyzed breeds, breeding month, litter month, parities, and estimate the heritability of the mummy. The results showed that impact of the breeds in mummy are not significant difference, P = 0. 375（P〉0.05）. The breeding in the month of August and October appeared high impact than the other months, the value of fixed-effects were 1. 592 and 1. 658, respectively. The litter month of May and July had produced a greater impact on give birth mummy, the value of the fixed-effects were 1. 399 and 0. 906. The in- fluence of the first parity on mummy was more previous than first four parities, the effect of the value was --0. 507. The fifth parity showed the highest impact on mummy, the fixed value was 0. 073. After fifth parity with increase of parity the impact of give birth mummy was decreased. The heritability of mummy was 0.38. The environment had great impact on mummy except disease （P〈0.01）, next important effect was parity （P〈0.05）, the breeds didn＇t showed significant effect on mummy （P〈0.05）.

关 键 词：母猪 木乃伊 品种 配种月份 产仔月份 胎次 遗传力 

分 类 号：S813[农业科学—畜牧学]