Table 1 Number of records, mean and variance of traits for Blonde d’Aquitaine and Limousin primiparous cows
|  | Blonde d’Aquitaine | Limousin | ||||
|---|---|---|---|---|---|---|
Trait | US | MB | MY | US | MB | MY |
Number of records | 1236 | 1212 | 1127 | 1048 | 1048 | 1036 |
Mean | 3.01 | 4.45 | 5.54 | 3.64 | 4.14 | 6.61 |
Variance | 0.75 | 1.42 | 1.91 | 0.82 | 0.63 | 3.13 |