The 6 main milk proteins in cattle are encoded by highly polymorphic genes characterized
by several nonsynonymous and synonymous mutations, with up to 47 protein variants …

From an extensive review of public domain information on dairy cattle quantitative trait loci
(QTL), we have prepared a draft online QTL map for dairy production traits. Most …

We previously localized a quantitative trait locus (QTL) on chromosome 6 affecting milk fat
and protein concentration to a 4-cM confidence interval, centered on the microsatellite …

Background Genome-wide association studies (GWAS) are a powerful tool for detecting
genomic regions explaining variation in phenotype. The objectives of the present study were …

We report putative quantitative trait loci affecting female fertility and milk production traits
using the merged data from two research groups that conducted independent genome …

Improvement of livestock has focused on the selective breeding of individuals with superior
phenotypes. With the development of increasingly advanced statistical methods that …

India is one the world's five largest producers of livestock and poultry meat. The livestock
sector contributes 28% of the country's agriculture gross domestic product and about 5% of …

A whole-genome scan to detect quantitative trait loci (QTL) for functional traits was
performed in the German Holstein cattle population. For this purpose, 263 genetic markers …

The objective of this study was to estimate the effects of different haplotypes of the casein
genes on milk production traits in Italian dairy cattle. Traits of interest were yields of milk, fat …

Several studies in a variety of breeds have reported at least two QTL for milk production
traits, including milk fat synthesis on bovine chromosome 6 (BTA6), comprising a region that …