Table 1 Number of cows (N), mean, standard deviation (SD), corrected phenotypic standard deviation (\({\varvec{\upsigma}}_{{\mathbf{p}}}\)), genetic standard deviation (\({\varvec{\upsigma}}_{{\mathbf{a}}}\)) and heritability (h2) for all evaluated traits
From: Inbreeding depression due to recent and ancient inbreeding in Dutch Holstein–Friesian dairy cattle
| Trait | Trait unit | N | Mean | SD | \({\varvec{\upsigma}}_{{\mathbf{p}}}\) | \({\varvec{\upsigma}}_{{\mathbf{a}}}\) | h2 (SE) |
|---|---|---|---|---|---|---|---|
| MY | kg | 38,778 | 8091 | 1375 | 1199 | 825 | 0.47 (0.02) |
| FY | kg | 38,778 | 342 | 51.8 | 43.9 | 28.4 | 0.42 (0.02) |
| PY | kg | 38,778 | 283 | 44.7 | 36.6 | 22.0 | 0.36 (0.02) |
| CI | days | 34,864 | 394 | 67.2 | 65.3 | 18.5 | 0.08 (0.01) |
| ICF | days | 34,937 | 77.6 | 30.0 | 27.2 | 7.9 | 0.08 (0.01) |
| IFL | days | 34,937 | 39.9 | 56.1 | 55.4 | 12.3 | 0.05 (0.01) |
| CR | % | 34,774 | 63.8 | 36.1 | 35.7 | 6.1 | 0.03 (0.01) |
| SCS150 | 1000 + 100*[log2 of cells/mL] | 38,301 | 1568 | 138 | 134 | 45.5 | 0.11 (0.01) |
| SCS400 | 1000 + 100*[log2 of cells/mL] | 37,068 | 1581 | 133 | 129 | 48.9 | 0.14 (0.01) |