Table 4 Descriptive statistics for herds and cows enrolled in the study
Item | Farm 1 | Farm 2 | Farm 3 | Total |
|---|---|---|---|---|
Province | Mashhad | Mashhad | Mashhad | Â |
Herd size (milking cows) | 600 | 700 | 1500 | 2800 |
Housing type | Free stalls | Free stalls | Free stalls | Â |
Control groups (cows) | 50 | 50 | 51 | 151 |
Treatment groups (cows) | 51 | 37 | 52 | 140 |
Average daily milk yield (kg) | 39 | 40 | 43 | 40.6 |
Post-milking teat dipping | Iodine compounds | Iodine compounds | Iodine compounds | Â |
Milking frequency (daily) | 3 times | 3 times | 3 times | Â |