| Literature DB >> 16734691 |
S A Muncie1, J P Cassady, M S Ashwell.
Abstract
Selection for increased milk yield is associated with decreased fertility in US Holsteins. Previously, a putative quantitative trait locus (QTL) on chromosome 18 affecting daughter pregnancy rate (DPR) was identified in one family. Our aim was to determine the validity of the QTL using additional markers and an extended pedigree. Twelve markers were genotyped in 940 descendants of the original sire in which the QTL was identified. Analysis of the extended pedigree detected significant and suggestive QTL for DPR, productive life and somatic cell score. Further analysis is underway to refine the QTL region so that positional candidate genes can be identified.Entities:
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Year: 2006 PMID： 16734691 DOI： 10.1111/j.1365-2052.2006.01425.x
Source DB: PubMed Journal: Anim Genet ISSN： 0268-9146 Impact factor: 3.169