Table 3 Origin and impact of cryobank bulls used in the different scenarios
From: Impact of the use of cryobank samples in a selected cattle breed: a simulation study
Scenario* | |||||
|---|---|---|---|---|---|
b1 | b3 | d1 | d3 | ||
Proportion of bulls used according to the sampling criterion (%) | > +3 s.d. EBVA | 3.3 [8.7] | 3 [8.8] | 1 [1.8] | 1 [1.6] |
< -3 s.d. EBVA | 3.1 [8.8] | 3 [8.2] | 4 [1.0] | 4 [1.0] | |
> +2 s.d. EBVB | 67.8 [21.2] | 67 [21.6] | 72 [21.7] | 71 [20.6] | |
Sire of sires with no male offspring selected | 26.3 [21.2] | 27 [21.6] | 24 [20.7] | 25 [20.2] | |
Birth generation of cryobank bulls used | 6.6 [0.3] | 6.6 [0.3] | 0.3 [0.3] | 0.3 [0.3] | |
Proportion of genes originating from cryobank bulls (%) | Generation 10 | 3.6 [2.3] | 7.3 [2.8] | 0. [0.1] | 8.8 [0.9] |
Generation 12 | 2.8 [2.9] | 6.5 [4.2] | 0. [0.0] | 6.8 [2.3] | |