Table 5.
Forage analysis of pasture grazed by cow–calf pairs from May to September 2017a
| Grazing periodb | |||||
|---|---|---|---|---|---|
| Item | May | June | July | August | September |
| TDNc | 63.9 | 63.25 | 62.05 | 61.45 | 60.23 |
| CP, % | 9.08 | 8.30 | 6.47 | 5.82 | 6.67 |
| Ash | 10.27 | 9.42 | 9.31 | 9.79 | 10.09 |
| NDF, % | 58.98 | 60.88 | 62.48 | 62.04 | 65.22 |
| ADF, % | 31.65 | 32.46 | 33.97 | 34.75 | 36.27 |
| Ca, % | 0.36 | 0.37 | 0.40 | 0.40 | 0.44 |
| P, % | 0.19 | 0.16 | 0.14 | 0.12 | 0.14 |
| S, % | 0.1259 | 0.1285 | 0.1107 | 0.1160 | 0.1257 |
| Fe, mg/kg | 144.0 | 90.5 | 92.5 | 77.5 | 193.7 |
| Cu, mg/kg | 4.40 | 4.20 | 3.20 | 2.95 | 3.70 |
| Zn, mg/kg | 18.30 | 17.85 | 14.35 | 15.10 | 17.23 |
| Mo, mg/kg | 1.20 | 0.95 | 1.30 | 1.25 | 1.37 |
| Mn, mg/kg | 86.3 | 67.3 | 72.1 | 84.4 | 99.8 |
aClipped forage samples from 10 different locations reported herein are composite over all locations within the representative sampling dates.
bValues presented are mean values of the representative sampling dates within the given month: May (n = 1), June (n = 2), July (n = 2), August (n = 2), and September (n = 3).
cTotal Digestible Nutrients = 88.9 – (0.79 × ADF%) (Lardy, 2018).