From: Occurrence of clinical mastitis in primiparous Estonian dairy cows in different housing conditions
Tied housing | Loose housing | |
---|---|---|
Number of herds | 6 | 5 |
Average herd size (min; max) | 259(200–350) | 318(130–460) |
Average milk yield per herd kg/305 d (min; max) | 8056(5822–9130) | 7194(6206–8061) |
Total number of freshly calved heifers | 423 | 640 |
Average number of calved heifers per herd (min; max) | 71(50–82) | 128(50–270) |