Table 5.
Summary statistics for animal performance, carcass traits, and economic outcomes of feedlot steers
| Variable | N | Mean | SD | Minimum | Maximum |
|---|---|---|---|---|---|
| In-weight, kg/animal | 870 | 432.0 | 51.24 | 276.0 | 576.0 |
| Exit weight, kg/animal | 870 | 640.4 | 80.54 | 405.0 | 927.1 |
| Days on feed (DOF) | 870 | 114 | 2.9 | 110 | 120 |
| ADG, kg/animal/d | 870 | 1.8 | 0.44 | −0.1 | 3.4 |
| Carcass weight, kg/carcass | 870 | 351.5 | 44.53 | 228.0 | 509.0 |
| MSA marble score, % | 870 | 351.6 | 75.99 | 130.0 | 640.0 |
| MSA Index | 853 | 54.7 | 1.97 | 47.7 | 60.8 |
| P8 fat depth1 | 870 | 17.1 | 5.35 | 2.0 | 40.0 |
| Rib fat depth | 870 | 8.6 | 3.48 | 0 | 25.0 |
| Purchase value, $/animal | 870 | 1,397.43 | 159.799 | 894.50 | 1,837.12 |
| Feed cost, $/animal | 870 | 324.95 | 37.910 | 208.63 | 442.62 |
| BRD treatment cost, $/animal | 870 | 13.31 | 17.148 | 5.67 | 122.26 |
| Other treatment cost, $/animal2 | 48 | 25.41 | 13.175 | 9.24 | 75.94 |
| Price received, $/kg cwt | 870 | 5.90 | 0.261 | 4.81 | 6.43 |
| Total slaughter value, $/animal | 870 | 2,059.21 | 253.301 | 1,094.40 | 2,570.53 |
| Net return, $/animal3 | 870 | 159.01 | 173.960 | −688.01 | 604.31 |
1P8 fat depth: fat depth at the crest of third sacral vertebra measured on the hot carcass.
2Other treatment cost: cost of treatments for ailments other than BRD.
3Net return was calculated using slaughter value less the purchase price, induction processing cost of $7.30/animal, feed cost, BRD treatment cost, other veterinary treatment cost, yardage cost of approximately AUD$1.05/animal/d, transport cost (flat load rate of AU$635/load with a load weight limit of 35,500 kg/load), buyers commission, and levy.