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Table 4 Efficiency of the mating method for reducing inbreeding coefficients (F), trait penalties (T), without forbidding for F and T

From: A mating method accounting for inbreeding and multi-trait selection in dairy cattle populations

Mating method

Holstein breed

allowed: 84.5%

Normandy breed

allowed: 85.3%

 

F (%)

T

F (%)

T

Random

3.89

2.39

4.05

1.83

Specific

2.86

1.06

2.73

0.56

Optimized

ρ (%)

3.14

72.8

1.28

72.7

3.12

70.5

0.94

70.5

  1. ρ = relative penalty reduction