Table 3.
Average correlations between estimated breeding values in the HD and DH direction
| Daughters/sire | 60 | 150 | |||
|---|---|---|---|---|---|
| Mastitis frequency (cases/lactation) |
0.28 Scenario 1 |
0.95 Scenario 2 |
0.28 Scenario 1 |
0.95 Scenario 2 |
|
| rG = 0 | B(τ) = 10 × L(τ) |
0.048 (0.027) |
0.060 (0.025) |
0.020 (0.018) |
0.003 (0.019) |
| B(τ) = 15 × L(τ) |
0.074 (0.010) |
0.172 (0.025) |
0.066 (0.017) |
0.134 (0.016) |
|
| rG = 0.2 | B(τ) = 10 × L(τ) |
0.125 (0.092) |
0.115 (0.005) |
0.056 (0.021) |
0.134 (0.032) |
| B(τ) = 15 × L(τ) |
0.113 (0.026) |
0.167 (0.024) |
0.114 (0.019) |
0.270 (0.031) |
|
| rG = -0.2 | B(τ) = 10 × L(τ) |
-0.005 (0.008) |
-0.003 (0.026) |
-0.074 (0.030) |
-0.068 (0.042) |
| B(τ) = 15 × L(τ) |
0.046 (0.004) |
0.079 (0.016) |
-0.037 (0.022) |
0.041 (0.047) |
|
Correlations (in bold) between estimated breeding values in the healthy to diseased direction and the diseased to healthy direction for different combinations of genetic correlation (rG), daughters per sire, mastitis frequency, and boundary level (B(τ)). Reported values in the table are the mean and standard errors (within parentheses) based on five replicates