Table 5 Efficiency of the mating method for reducing inbreeding coefficients (F), trait penalties (T) in the Holstein (Normandy) breed, using three scenarios
From: A mating method accounting for inbreeding and multi-trait selection in dairy cattle populations
Mating method | 32% herds 2 47% herds 2 actual allowed: 62.9% allowed: 62.5% | 0% herds 2 0% herds 2 no profiles allowed: 73.6% allowed: 79% | 100% herds 2 100% herds 2 profiles 50% allowed: 35.8% allowed: 39.3% | |||
|---|---|---|---|---|---|---|
F (%) | T | F (%) | T | F (%) | T | |
Random | 3.82 4.05 | 2.16 1.50 | 3.85 4.10 | 2.33 1.51 | 3.85 4.10 | 1.32 1.38 |
Specific | 2.91 2.80 | 1.10 0.58 | 2.88 2.74 | 1.43 0.78 | 3.05 2.90 | 0.83 0.90 |
Optimized ρ (%) | 3.19 3.25 69.8 63.8 | 1.42 0.91 69.8 63.8 | 3.11 3.08 76.0 75.2 | 1.64 0.96 76.0 75.2 | 3.27 3.25 72.2 71.3 | 0.97 0.89 72.2 71.3 |