Table 2.
Summary of estimates of variance and heritability obtained from a sire model using the logit link function for some osteochondrosis lesions
| Trait (osteochondrosis lesion site) | σ2 sire | σ2 phen | s.e. | h2 | s.e. | PE | s.e. |
|---|---|---|---|---|---|---|---|
| Any osteochondrosis | 0.076 | 3.649 | 0.158 | 0.08 | 0.06 | 0.07 | 0.04 |
| Stifle cyst | 0.000 | 3.468 | 0.656 | 0.00 | 0.00 | 0.05 | 0.18 |
| Lateral trochlear ridge of distal femur | 0.212 | 4.092 | 0.395 | 0.21 | 0.17 | 0.13 | 0.08 |
| Any stifle osteochondrosis | 0.155 | 3.884 | 0.281 | 0.16 | 0.12 | 0.11 | 0.06 |
| Distal intermediate ridge of tibia | 0.092 | 3.532 | 0.627 | 0.10 | 0.19 | 0.04 | 0.17 |
| Lateral trochlear ridge of talus | 0.000 | 4.037 | 0.758 | 0.00 | 0.00 | 0.18 | 0.15 |
| Any tarsal osteochondrosis | 0.000 | 3.527 | 0.392 | 0.00 | 0.00 | 0.06 | 0.10 |
| Dorsoproximal P1 | 0.126 | 3.559 | 0.657 | 0.14 | 0.24 | 0.00 | 0.18 |
| Proximal sagittal ridge of Mc/MtIII | 0.053 | 3.813 | 0.922 | 0.05 | 0.23 | 0.12 | 0.21 |
| Any fetlock osteochondrosis | 0.013 | 3.412 | 0.348 | 0.02 | 0.10 | 0.14 | 0.10 |
σ2 sire, variation attributable to the sire; σ2 phen, variation attributable to the phenotype; s.e., standard error of value to the left; h2, heritability estimate; PE, proportion of variation attributable to the permanent environment due to the dam.