Table E.4: Bacteriological finding, clinical mastitis or somatic cell counts reported for straw yard systems
| Country | n (a) | ø Herd size (range) | Variable | Level | Measure | Mean/prevalence | Reference |
|---|---|---|---|---|---|---|---|
| Clinical mastitis (CM) | |||||||
| CAN | 8 | (33–345) | CM | Lactation | Incidence | 0.4% | Elghafghuf et al. (2014) |
| ES | 1 | 242 | CM (b) | Cow | Incidence | 35%; 11.7% | Astiz et al. (2014) |
| USA (c) | 1 | 269 | CM | Cow | Prev. | 15.1% | Sjostrom et al. (2019) |
| Somatic cell counts (SCC) | |||||||
| DE, NL, IT, AT, SI, SE | 21 | 117 (16–720) | SCC | Herd | Median | 79 | Blanco‐Penedo et al. (2020) |
| ES | 1 | 181 | SCC | Cow | Mean | 139.5 | Astiz et al. (2014) |
| USA | 6 | na | BMSCC | Herd | Mean | 301 | Eckelkamp et al. (2016a,b) |
| USA (c) | 1 | 268 | SCS | Cow | LSmean | 2.57 | Heins et al. (2019) |
(a)
Number of farms.
(b)
CM in 150 DIM: first and second mastitis‐case incidence.
(c)
Straw yard outside.