Table 4.
Simulated pasture and feed consumption in IFSM for the extensive beef system, pasture seeding (PS), pasture fertilization (PF), and grain supplementation (GS) in the Cerrado and Amazon biomes, Brazil.
| Output of Simulated Beef Systems |
Cerrado Simulations | Amazon Simulations | ||||||
|---|---|---|---|---|---|---|---|---|
| Extensive | PS | PF | GS | Extensive | PS | PF | GS | |
| Grazed forage consumed (t DM/ha) |
1.61 | 3.41 | 3.39 | 3.11 | 1.74 | 3.55 | 3.53 | 3.26 |
| Purchased | ||||||||
| Forage (t DM/ha) | 0.52 | 1.25 | 1.26 | 1.24 | 0.30 | 1.03 | 1.03 | 1.02 |
| Grain (t DM/ha) | 0.04 | 0.06 | 0.06 | 0.13 | 0.03 | 0.05 | 0.06 | 0.12 |
| Soybean meal (t DM/ha) | - | - | - | 0.11 | - | - | - | 0.13 |
| Mineral & vitamin mix (t DM/ha) |
0.01 | 0.02 | 0.02 | 0.02 | 0.01 | 0.02 | 0.02 | 0.02 |
| Grazed forage & purchased feed input (t DM/ha) a |
12.17 | 34.72 | 34.71 | 34.59 | 12.07 | 34.63 | 34.62 | 34.53 |
| Grazed forage consumed (t DM/head) | 1.61 | 1.71 | 1.70 | 1.56 | 1.74 | 1.77 | 1.77 | 1.63 |
| Purchased | ||||||||
| Forage (t DM/head) | 0.52 | 0.63 | 0.63 | 0.62 | 0.30 | 0.52 | 0.52 | 0.51 |
| Grain (t DM/head) | 0.04 | 0.03 | 0.03 | 0.07 | 0.03 | 0.02 | 0.03 | 0.06 |
| Soybean meal (t DM/head) | - | - | - | 0.06 | - | - | - | 0.06 |
| Mineral and vitamin mix (t DM/head) | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Grazed forage & purchased feed input (t DM/head) a |
12.17 | 32.37 | 32.36 | 32.31 | 12.07 | 32.31 | 32.32 | 32.26 |
| Net animal weight sold (kg BW/ha) |
123 | 281 | 281 | 300 | 124 | 280 | 280 | 301 |
| (kg CW/ha) | 64 | 147 | 147 | 157 | 65 | 146 | 146 | 157 |
| Net animal weight sold per feed input (kg BW/t DM) |
56.7 | 59.5 | 59.7 | 65.4 | 59.9 | 60.5 | 60.6 | 66.5 |
| (kg CW/t DM) | 29.6 | 31.1 | 31.1 | 34.1 | 31.3 | 31.6 | 31.6 | 34.7 |
a Does not include mineral and vitamin mix.