Table 1.1.
Gestation feed curve for sows calculated from NRC [26] equations and using the feeding pattern proposed by Tokach et al. [43]1
| Days after service | MJ DE/day2 |
|---|---|
| 0 - 12 | 24.2 |
| 13 - 453 | 30.4 |
| 46 - 100 | 25.1 |
| 101 - 112 | 38.1 |
| 113 - 115 | 25.1 |
| Total Intake (MJ DE) | 3208 |
| Mean Daily intake (MJ DE) | 28.0 |
| Mean Daily intake (kg/day) | 2.15 |
1 For a sow of 180 kg, gaining 10 kg in body weight (above the normal weight increase due to uterine growth, uterine fluids, products of conception and mammary tissue; assumed to be 22.8 kg) during pregnancy and fed a diet containing 13 MJ DE/kg.
2 Increase feed curve at each stage by (0.92 MJ DE per day) or approx. 3.5% for each 10 kg in sow weight above 180 kg.
3 Increase curve at day 13 - 45 by 6.2 MJ/day for each additional 10 kg in body weight gain required during gestation.