Accuracy of Genomic Prediction for Residual Feed Intake in a Multi-breed Cattle Population
نویسندگان
چکیده
Department of Environment and Primary Industries, AgriBio, 5 Ring Road, Bundoora, VIC, 3083, Australia Dairy Futures Cooperative Research Centre (CRC), AgriBio, 5 Ring Road, Bundoora, VIC, 3083, Australia Melbourne School of Land and Environment, The University of Melbourne, Parkville, VIC, 3010, Australia Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, N1G 2W1, Canada email: [email protected] and [email protected]
منابع مشابه
Accuracy of predicting genomic breeding values for residual feed intake in Angus and Charolais beef cattle.
In beef cattle, phenotypic data that are difficult and/or costly to measure, such as feed efficiency, and DNA marker genotypes are usually available on a small number of animals of different breeds or populations. To achieve a maximal accuracy of genomic prediction using the phenotype and genotype data, strategies for forming a training population to predict genomic breeding values (GEBV) of th...
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The aim of this study was to assess the accuracy of genomic predictions for 19 traits including feed efficiency, growth, and carcass and meat quality traits in beef cattle. The 10,181 cattle in our study had real or imputed genotypes for 729,068 SNP although not all cattle were measured for all traits. Animals included Bos taurus, Brahman, composite, and crossbred animals. Genomic EBV (GEBV) we...
متن کاملAccuracy of genomic breeding values for residual feed intake in crossbred beef cattle.
The benefit of using genomic breeding values (GEBV) in predicting ADG, DMI, and residual feed intake for an admixed population was investigated. Phenotypic data consisting of individual daily feed intake measurements for 721 beef cattle steers tested over 5 yr was available for analysis. The animals used were an admixed population of spring-born steers, progeny of a cross between 3 sire breeds ...
متن کاملEstimation of genomic breeding values for residual feed intake in a multibreed cattle population.
Residual feed intake (RFI) is a measure of the efficiency of animals in feed utilization. The accuracies of GEBV for RFI could be improved by increasing the size of the reference population. Combining RFI records of different breeds is a way to do that. The aims of this study were to 1) develop a method for calculating GEBV in a multibreed population and 2) improve the accuracies of GEBV by usi...
متن کاملDuration of performance tests for growth rate, feed intake and feed efficiency in four biological types of beef cattle
Data from the centralised performance tests for young beef bulls in South Africa were used to determine the minimum test duration required to obtain an accurate measure of feed intake, growth rate and two measures of feed efficiency: feed conversion ratio and residual feed intake. Five breeds from four different biological types were used to investigate whether different duration tests are requ...
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