Authors
Haroldo HR Neves, Roberto Carvalheiro, Ana M Pérez O’brien, Yuri T Utsunomiya, Adriana S Do Carmo, Flávio S Schenkel, Johann Sölkner, John C McEwan, Curtis P Van Tassell, John B Cole, Marcos VGB da Silva, Sandra A Queiroz, Tad S Sonstegard, José Fernando Garcia
Publication date
2014/12
Journal
Genetics Selection Evolution
Volume
46
Pages
1-13
Publisher
BioMed Central
Description
Background
Nellore cattle play an important role in beef production in tropical systems and there is great interest in determining if genomic selection can contribute to accelerate genetic improvement of production and fertility in this breed. We present the first results of the implementation of genomic prediction in a Bos indicus (Nellore) population.
Methods
Influential bulls were genotyped with the Illumina Bovine HD chip in order to assess genomic predictive ability for weight and carcass traits, gestation length, scrotal circumference and two selection indices. 685 samples and 320 238 single nucleotide polymorphisms (SNPs) were used in the analyses. A forward-prediction scheme was adopted to predict the genomic breeding values (DGV). In the training step, the estimated breeding values (EBV) of bulls were deregressed (dEBV) and used as pseudo …
Scholar articles
HHR Neves, R Carvalheiro, AMP O'brien… - Genetics Selection Evolution, 2014