From: White muscle disease in foals: focus on selenium soil content. A case series
 | Grass | Hay | Reference values |
---|---|---|---|
Co (μg/kg DM) | 89 | 88 | >100 |
Na (g/kg DM) | 1.6 | 2.7 | 3.0–30 |
Mg (g/kg DM) | 2 | 2.2 | 3.9–5.0 |
Se (μg/kg DM) | 29 | 44 | 100–1000 |
Fe (mg/kg DM) | 117 | 175 | 50–100 |
Ca (g/kg DM) | 4.1 | 3.0 | 2–7 |
P (g/kg DM) | 3 | 3.0 | 2–5 |
K (g/kg DM) | 17 | 10 | > 4.3 |
Cu (mg/kg DM) | 8.5 | 7.8 | 7.0–10 |
Zn (mg/kg DM) | 46 | 39 | 40–100 |
Mn (mg/kg DM) | 223 | 348 | > 40 |