Detection of loci affecting milk production and health traits in an elite US Holstein population using microsatellite markers

被引：72

作者：

Ashwell, MS ^{[1
]}

Rexroad, CE ^{[1
]}

Miller, RH ^{[1
]}

VanRaden, PM ^{[1
]}

Da, Y ^{[1
]}

机构：

[1] USDA ARS,ANIM IMPROVEMENT PROGRAMS LAB,BELTSVILLE,MD 20705

来源：

ANIMAL GENETICS | 1997年 / 28卷 / 03期

关键词：

dairy cattle; microsatellite markers; milk production; quantitative trait loci; somatic cell score;

D O I：

10.1111/j.1365-2052.1997.00115.x

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Quantitative trait loci (QTL) affecting health and milk production traits were studied in seven large half-sib US Holstein families by using the granddaughter design. Genotyping for 16 markers was completed and marker allele differences within and pooled-across families were analysed. Potential QTL were identified for somatic cell score (SCS), fat yield, fat percentage, protein yield and protein percentage. Three markers (BM203, BM4505 and BM2078) were associated with significant effects for different traits and, after further analysis, may be useful in marker-assisted selection in specific families. Comparisons between these data and previously identified QTL support the location of a QTL for milk yield and protein yield on chromosome 21.

引用

页码：216 / 222

页数：7

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