EFFECTS OF POLYMORPHIC MILK PROTEIN GENES ON MILK-YIELD AND COMPOSITION TRAITS IN HOLSTEIN CATTLE

被引：34

作者：

MAO, IL ^{[1
]}

BUTTAZZONI, LG ^{[1
]}

ALEANDRI, R ^{[1
]}

机构：

[1] ITALIAN LIVESTOCK ASSOC,I-00161 ROME,ITALY

来源：

ACTA AGRICULTURAE SCANDINAVICA SECTION A-ANIMAL SCIENCE | 1992年 / 42卷 / 01期

关键词：

GENOTYPIC CONTRASTS; POLYGENE; HERITABILITY; GENE FREQUENCY; EQUILIBRIUM;

D O I：

10.1080/09064709209410101

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

In assessing single gene effects on a quantitative trait, contrasts between the genotypes would be of primary interest. However, only the net differences over and above the contributions from polygene effects from other loci would be of practical importance. In a population of 11 015 Holstein cows, the B allele of K-casein was significantly favourable for milk and protein yields and for protein %, and the A allele of beta-lactoglobulin was favourable for fat % and protein yield. The degree of dominance for their effects was shown. Also shown were the independence between effects of the casein variants and those of polygene, and between effects of casein genes. Adjustment for casein gene effects made no difference to the estimates of heritability and other genetic parameters of all five dairy production traits.

引用

页码：1 / 7

页数：7

共 31 条

[21] EFFECTS OF MILK PROTEIN GENETIC-VARIANTS ON MILK-YIELD AND COMPOSITION [J].