Table 4.
Pearson correlation of corrected phenotypes with EBVs using linear and threshold models, and TS9, US9, TS7, US7 and TS2, US2 scales for teat and udder score
| Linear models1 | Threshold models1 | |||||||
|---|---|---|---|---|---|---|---|---|
| Traits2 | Cor (EBV, y*) | Rho | Average r | DIC | Cor (EBV, y*) | Rho | Average r | DIC |
| Teat score, TS9 | 0.88 | 0.85 | 0.64 (0.03) | 5,353.77 | 0.64 | 0.65 | 0.45 (0.05) | 6,617.77 |
| Udder score, US9 | 0.72 | 0.71 | 0.52 (0.04) | 5,033.45 | 0.54 | 0.57 | 0.49 (0.04) | 5,685.75 |
| Teat score, TS7 | 0.88 | 0.86 | 0.65 (0.03) | 5,261.34 | 0.78 | 0.77 | 0.62 (0.04) | 8,084.93 |
| Udder score, US7 | 0.72 | 0.71 | 0.50 (0.04) | 4,985.51 | 0.64 | 0.63 | 0.51 (0.05) | 8,475.42 |
| Teat score, TS2 | 0.78 | 0.44 | 0.21 (0.09) | 4,383.76 | ||||
| Udder score, US2 | 0.59 | 0.43 | 0.38 (0.09) | 1,442.99 |
1Rho = Spearman’s rank correlation coefficient, r = EBV accuracy; Cor = Pearson correlation; DIC = deviance information criteria.2TS9 = teat score on a 1 to 9 scale; US9 = udder score on a 1 to 9 scale; TS7 = teat score on a 1 to 7 scale; US7 = udder score on a 1 to 7 scale; TS2 = teat score on a 1 to 2 binary scale; US2 = udder score on a 1 to 2 binary scale.