title: Technical note: Rapid calculation of genomic evaluations for new animals.
abstract: A method was developed to calculate preliminary genomic evaluations daily or weekly before the release of official monthly evaluations by processing only newly genotyped animals using estimates of single nucleotide polymorphism effects from the previous official evaluation. To minimize computing time, reliabilities and genomic inbreeding are not calculated, and fixed weights are used to combine genomic and traditional information. Correlations of preliminary and September official monthly evaluations for animals with genotypes that became usable after the extraction of genotypes for August 2014 evaluations were >0.99 for most Holstein traits. Correlations were lower for breeds with smaller population size. Earlier access to genomic evaluations benefits producers by enabling earlier culling decisions and genotyping laboratories by making workloads more uniform across the month.
authors.affiliation: Animal Genomics and Improvement Laboratory, Agricultural Research Service, USDA, Beltsville, MD 20705-2350. Electronic address: George.Wiggans@ars.usda.gov.
authors.forename: G R
authors.initials: GR
authors.lastname: Wiggans
authors.affiliation: Animal Genomics and Improvement Laboratory, Agricultural Research Service, USDA, Beltsville, MD 20705-2350.
authors.forename: P M
authors.initials: PM
authors.lastname: VanRaden
authors.affiliation: Animal Genomics and Improvement Laboratory, Agricultural Research Service, USDA, Beltsville, MD 20705-2350.
authors.forename: T A
authors.initials: TA
authors.lastname: Cooper
mesh_terms: D000818:Animals; D002417:Cattle / Q000235:genetics*; D003612:Dairying / Q000379:methods*; D005260:Female; D016678:Genome / Q000235:genetics; D023281:Genomics; D005838:Genotype; D020641:Polymorphism, Single Nucleotide; D012621:Seasons; D013997:Time Factors
keywords: continuous evaluation; genomic evaluation; genotype