This study investigated the accuracy of imputation from LD (7K) to 54K panel and compared accuracy of genomic prediction with or without the X chromosome information, based on data of Nordic Holstein bulls. Beagle and Findhap were used for imputation. Averaged over two imputation datasets, the allele correct rates of imputation using Findhap were 98.2% for autosomal markers, 89.7% for markers o...

This study aims at characterizing the asymptotic behavior of genomic prediction R2 as the size of the reference population increases for common or rare QTL alleles through simulations. Haplotypes derived from whole-genome sequence of 85 Caucasian individuals from the 1,000 Genomes Project were used to simulate random mating in a population of 10,000 individuals for at least 100 generations to c...

Genomic selection has been widely implemented in many livestock breeding programs, but it remains incipient buffalo. Therefore, this study aimed to (1) estimate variance components incorporating genomic information Murrah buffalo; (2) evaluate the performance of prediction for milk-related traits using single- and multitrait random regression models (RRM) single-step best linear unbiased approa...

The objective of the present study was to estimate genetic trends for lactation milk yield, persistency of milk yield, somatic cell count and interval between first and second calving in Holstein dairy cows of Iran. The dataset consisted of 210,625 test day and 25,883 first parity cows with milk yield recorded from July 2002 to September 2007 comprising 97 herds in Iran. Breeding values of anim...

Genetic evaluation based on information from phenotypes, pedigree and markers can be implemented using a recently developed single-step method. In this paper we compare accuracies of predicted breeding values for daily gain and feed conversion ratio (FCR) in Danish Duroc pigs obtained from different versions of single-step methods, the traditional pedigree-based method and the genomic BLUP (GBL...