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. 2016 Oct 13;7:178. doi: 10.3389/fgene.2016.00178

Table 2.

Values of parameters used in calculating response to selection in sib testing, progeny testing schemes, and genomic selection schemes: basic parameters and range of values used in alternative breeding schemes.

Parameter Basic Alternatives range
Additive genetic variance intercept: σAint2 0.3 0.1, 0.5
Additive genetic variance slope: σAsl2 0.05
Genetic correlation intercept slope rAint, Asl 0 0.5
Residual variance: σe2 0.7
Proportion of selected sires 0.05
Proportion of selected dams 0.20
Number of progeny per dam 10
Number of animals in nucleus 2000
Number of commercial half-sibs/half-sib progeny 100
Reference population genomic selection (N) 5000 1,000,000
Relative generation interval progeny testing compared to genomic selection or sib testing 1.6
Number of effective chromosome segments (Me) 1200