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Title:   Author  item
                                            Wiggans, Georgeitem
                                            Vanraden, Paulitem
                                            Cooper, Tabatha
  Submitted to: Journal of Dairy Science
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 11/28/2014
                                    Publication  Date: 3/1/2015
                                    Citation: Wiggans, G.R., Van Raden, P.M., Cooper, T.A. 2015. Rapid calculation of genomic evaluations for new animals. Journal of Dairy Science. 98(3):2039-2042.Interpretive Summary: A method was developed to calculate preliminary genomic evaluations weekly before release of official monthly evaluations by processing only newly genotyped animals and using estimates of SNP 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. Preliminary and official monthly evaluations for animals with genotypes were highly correlated for most Holstein traits but less correlated for breeds with smaller population size. Earlier access to genomic evaluations benefits producers by enabling earlier culling decisions and genotyping laboratories by making more uniform workloads.
                                Technical 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 SNP 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 genotpyes 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.


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