Table 5.
Mineral composition of the Longissimus dorsi of the cattle (n = 15) from the three pasture-based systems over 3 years.
| Element | PP | GWC | MG | SED | P (F2,4) |
|---|---|---|---|---|---|
| Macro minerals (mg/100 g FM) | |||||
| Ca | BDL | BDL | BDL | ||
| K | 363 | 361 | 364 | 2.7 | 0.581 |
| Mg | 23.3a | 23.0b | 23.4a | 0.05 | 0.004 |
| Na | 46.9b | 48.5 | 49.5a | 0.68 | 0.049 |
| P | 179 | 175 | 177 | 2.8 | 0.435 |
| S | 173 | 169 | 171 | 2.7 | 0.343 |
| Micro minerals (mg/100 g FM or μg/100 g FMβ) | |||||
| As | BDL | BDL | BDL | ||
| Co | BDL | BDL | BDL | ||
| Crβ | 25.5 | 27.3 | 18.7 | 18.71 | 0.847 |
| Cuβ | 60.5 | 57.8 | 64.1 | 2.83 | 0.203 |
| Fe | 1.91 | 1.96 | 20.3 | 0.129 | 0.686 |
| Moβ | 0.59 | 0.58 | 0.56 | 0.097 | 0.963 |
| Mnβ | 10.8 | 10.07 | 10.9 | 0.75 | 0.534 |
| Niβ | 7.92 | 4.81 | 8.35 | 3.057 | 0.511 |
| Seβ | 5.13 | 6.70 | 7.01 | 0.830 | 0.162 |
| Zn | 4.04 | 3.91 | 4.03 | 0.113 | 0.522 |
| Non-nutritional elements (mg/100 g FM or μg/100 g FMβ) | |||||
| Al | BDL | BDL | BDL | ||
| Cdβ | 0.575 | 0.182 | 1.173 | 0.5481 | 0.299 |
| Pbβ | 3.38 | 2.86 | 13.5 | 5.35 | 0.196 |
| Tiβ | 81.3 | 79.7 | 81.1 | 1.28 | 0.462 |
Abbreviation: PP = permanent pasture; GWC = grass and white clover; MG = short-term monoculture grass ley; FM = fresh matter; BDL = below detection limit. Elements close to their analytical limit of detection (LOD): Al, LOD 3.65 mg/100 g FM; As, LOD 1.1 μg/100 g FM; Ca, LOD 8.32 mg/100 g FM; Cd, LOD 0.08 μg/100 g FM; Co, 7.6 μg/100 g FM; Cr, LOD 3.7 μg/100 g FM; Mo, LOD 0.26 μg/100 g FM; Ni, LOD 1.6 μg/100 g FM; Pb, LOD 1.3 μg/100 g FM.
abValues within a row with different superscripts differ significantly at P < 0.05.