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) | 405 ± 64a (341–469) | 409 ± 53 (355–462) | 401 ± 73 (328–474) |
Holstein Friesian (n = 100) | 458 ± 73 (385–530) | 453 ± 77 (376–529) | 463 ± 68 (395–531) |
Swiss Fleckvieh (n = 100) | 460 ± 60 (400–520) | 462 ± 61 (401–523) | 458 ± 58 (400–517) |
All cows (n = 300) | 441 ± 71 (370–511) | 441 ± 68 (373–509) | 440 ± 73 (368–513) |