Table 1 Characteristics of seven udder conformation traits
Phenotype (and abbreviation) | Number of animals with phenotypes | Distribution of the DYD | Accuracy of the DYD | ||||
|---|---|---|---|---|---|---|---|
Min | Max | Mean (±sd) | Min | Max | Mean (±sd) | ||
Udder depth (UD) | 7110 | −2.22 | 2.75 | 0.11 (±0.64) | 0.71 | 0.99 | 0.91 (±0.04) |
Teat thickness (TT) | 7108 | −2.32 | 2.17 | 0.04 (±0.52) | 0.71 | 0.99 | 0.91 (±0.04) |
Teat length (TL) | 7159 | −2.61 | 2.52 | −0.02 (±0.66) | 0.71 | 0.99 | 0.93 (±0.04) |
Teat placement (TP) | 7108 | −1.92 | 2.50 | 0.16 (±0.55) | 0.71 | 0.99 | 0.91 (±0.04) |
Fore udder length (FUL) | 7034 | −2.03 | 2.15 | 0.21 (±0.51) | 0.71 | 0.99 | 0.88 (±0.04) |
Central ligament (CL) | 6923 | −2.24 | 2.32 | 0.11 (±0.57) | 0.71 | 0.99 | 0.85 (±0.05) |
Fore udder attachment (FUA) | 5470 | −2.73 | 2.48 | 0.13 (±0.65) | 0.71 | 0.99 | 0.87 (±0.05) |