Groups | |||
---|---|---|---|
Breed | All cows (100 per breed) | Young cows, 2 to 4 years (50 per breed) | Old cows, 4.1 to 6 years (50 per breed) |
Brown Swiss (n = 100) | 55 ± 9 (46–64) | 56 ± 9 (47–65) | 55 ± 9 (46–64) |
Holstein Friesian (n = 100) | 56 ± 11 (45–67) | 57 ± 13 (44–70) | 55 ± 8 (47–63) |
Swiss Fleckvieh (n = 100) | 53 ± 9 (45–62) | 55 ± 9 (46–64) | 52 ± 8 (44–59) |
All cows (n = 300) | 55 ± 10 (45–65) | 56 ± 10 (46–66) | 54 ± 9 (45–62) |