Table 6.
Response to selection in the breeding goala under different scenarios
| Scenario | Selection criteria | Bulls | Dams | Overall Ry | |||||
|---|---|---|---|---|---|---|---|---|---|
| N | Rg | rIH | OP | n | Rg | rIH | |||
| Base | RID IgG | 30 | 9.730 | 0.730 | 1 | 3 | 6.310 | 0.480 | 2.823 |
| Alternative | |||||||||
| I | RID IgG | 120 | 12.030 | 0.910 | 1 | 3 | 6.310 | 0.480 | 3.228 |
| II | NIRS IgG | 30 | 7.230 | 0.540 | 1 | 3 | 4.290 | 0.330 | 2.028 |
| III | NIRS IgG | 120 | 9.700 | 0.730 | 1 | 3 | 4.290 | 0.330 | 2.462 |
| IV | NIRS IgG + IgA + IgM | 30 | 9.370 | 0.710 | 1 | 3 | 6.436 | 0.486 | 2.782 |
| V | NIRS IgG + IgA + IgM | 120 | 11.410 | 0.860 | 1 | 3 | 6.436 | 0.486 | 3.141 |
n number of offspring, Rg response (g/L) per generation, rIH index accuracy, OP own performance, Ry response (g/L) per year, IgG immunoglobulins G (g/L), IgA immunoglobulins G (g/L), IgM immunoglobulins G (g/L), RID radial immunodiffusion (direct measure), NIRS near-infrared spectroscopy (indirect measure)
aColostrum concentration of immunoglobulins G (g/L) measured through gold standard radial immunodiffusion