Table 1 Herd data from herds with milk samples in 2019 and 2020 versus all herds in Norway
Herds with milk samples | All herds (n = 7070)a | ||||
|---|---|---|---|---|---|
All herds (n = 4132) | Pipeline (n = 2359) | Parlour (n = 507) | AMS (n = 1266) | ||
Herd size, mean (SD)b | 28 (18) | 18 (8) | 28 (16) | 46 (17) | 29 |
Average milk yield, mean (SD)c | 8262 (1347) | 7887 (1323) | 8056 (1247) | 9050 (1057) | 8647f |
Mastitis treatments, mean (SD)d | 0.23 (0.2) | 0.28 (0.2) | 0.22 (0.2) | 0.14 (0.1) | 0.14 |
BMSCC, mean (SD)e | 118 (37) | 112 (37) | 122 (39) | 127 (34) | 121f |
Number of samples | 36,286 | 15,849 | 5404 | 15,033 | |