breeding value

(redirected from true breeding value)

breeding value

the (economic) worth of an individual's GENOTYPE, as judged by the average performance of its offspring. From the size of the breeding value it is possible to choose suitable parents for future crosses.

See PEDIGREE ANALYSIS.

breeding value

the sum of gene effects of a breeding animal as measured by the performance of its progeny.

aggregate breeding value
see true breeding value (below).
estimated breeding value
an estimate of the ability of an individual to produce superior offspring; based on one or more measurements of performance, using phenotypic values, taken on the animal itself or, more commonly, on a number of its relatives.
true breeding value
genetic merit of an individual which can be conceptually defined as twice the average deviation of its offspring from the population mean when mated randomly to an infinite population.
true overall breeding value
the true, overall breeding value arrived at by the addition of the true breeding values for each selection objective with each true breeding value multiplied by the relevant net economic value.
References in periodicals archive ?
Selection was made based on the true breeding value (relative weights for each trait should be entered into the program via a parameter file), phenotypic value (relative weight needed), and estimated breeding value (relative weight needed).
A Pearson's correlation between the true breeding value and estimated breeding value was computed to check the accuracy of the BLUP estimation.
Genetic gain of true breeding value for each trait according to selection method in CHPPT scheme BW12 (1) BW24 Selection method Selection method Birth year TBV EBV PH TBV EBV PH 1983 -0.
Genetic gain per year and relative efficiency of the true breeding value for each trait according to the selection method for each scheme BW12 (1) Selection method Scheme TBV EBV PH CHPPT dG (3) 1.
Thereafter, it was selected based on phenotypes, estimated breeding values, and/or true breeding values.
The means of simulated traits as true breeding values or error values ranged from -0.
Accuracy of breeding value estimates are represented as the correlation between true breeding values and estimated breeding values and 1,000 replicates were processed for each case to estimate the accuracy.
10), the breeding values estimated using genomic information (GEBV) were generally more highly correlated to the true breeding values than those estimated using pedigree information (PEBV).
2008) simulated QTL effects from a weighted normal distribution, his estimates for breeding values were more highly correlated than the true breeding values in a nonlinear than a linear regression model.