Short communication: Validation of genomic breeding value predictions for feed intake and feed efficiency traits
نویسندگان
چکیده
منابع مشابه
Genomic selection for feed efficiency traits
Introduction Feed costs comprise the majority of variable expenses in beef cattle systems making feed efficiency an important economic consideration within the beef industry (Koch et al ., 1963; Dickerson et al ., 1974) . Aside from the direct economic impact of this trait complex at the individual producer level, the projections of global population growth provide extra pressure for efficient ...
متن کاملResidual Feed Intake and Feed Efficiency: Differences and Implications
In the beef production system, 70-75% of the total dietary energy is used for maintenance (Ferrell and Jenkins 1984; NRC 1996; Montaldo-Bermudez et al. 1990). Thus, while only 5% of the total life cycle dietary energy consumption is used for protein deposition in beef cattle, swine and poultry are more efficient at 14 and 22%, respectively. The relatively large size, slow maturity and slow repr...
متن کاملFeed Intake Specifications in Defining Breeding Objectives
SUMMARY Development of selection objectives for beef cattle requires tion of the available feed resources. In production systems \Ji th to li~eral quantities of harvested feeds of relatively high quality to improve economic eff iciency ~lill normally favor animals ~li th high potentials for the primary production traits. Hovlever , these highly types may also have relatively high maintenance re...
متن کاملAccuracy 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...
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 ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2014
ISSN: 0022-0302
DOI: 10.3168/jds.2013-7376