Detection of putative loci affecting milk production and composition, health, and type traits in a United States Holstein population

被引：34

作者：

Ashwell, MS ^{[1
]}

Da, Y ^{[1
]}

Van Tassell, CP ^{[1
]}

Vanraden, PM ^{[1
]}

Miller, RH ^{[1
]}

Rexroad, CE ^{[1
]}

机构：

[1] ARS, USDA, Beltsville, MD 20705 USA

来源：

JOURNAL OF DAIRY SCIENCE | 1998年 / 81卷 / 12期

关键词：

quantitative trait loci; microsatellite markers; milk yield traits; type traits;

D O I：

10.3168/jds.S0022-0302(98)75896-5

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 affecting milk yield and composition, health, and type traits were studied for seven large grandsire families of US Holstein using the granddaughter design. The families were genotyped at 20 microsatellite markers on 15 chromosomes, and the effects of the marker alleles were analyzed for 28 traits (21 type traits, 5 milk yield and composition traits, somatic cell score, and productive herd life). Markers BM415 on chromosome 6 and BM6425 on chromosome 14 were associated with effects on protein percentage in a single grandsire family. The latter marker had a lower probability of being associated with changes in milk yield and fat percentage is the same-family. Increases in productive herd life were associated with an allele at marker BM719 on chromosome 16 in one grandsire family.

引用

页码：3309 / 3314

页数：6

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