Table 2. Productive performance of lactating sows fed diets supplemented with spray-dried plasma1).
| Item | Dietary treatments | SEM | p-value | |
|---|---|---|---|---|
| CON2) | SDP2) | |||
| Parity | 2.1 | 2.0 | 0.30 | 0.733 |
| Lactation days (d) | 28.00 | 26.16 | 0.76 | 0.118 |
| Initial BW on d 1 after farrowing (kg) | 226.14 | 229.42 | 3.12 | 0.471 |
| Final BW at weaning (kg) | 208.80 | 218.61 | 3.73 | 0.092 |
| Sow BW change (kg) | −17.34 | −10.81 | 2.45 | 0.081 |
| Total feed intake (kg) | 183.83 | 180.48 | 4.07 | 0.530 |
| ADFI (kg) | 6.57 | 6.89 | 0.11 | 0.114 |
| Initial backfat depth (mm) | 20.50 | 20.75 | 1.88 | 0.789 |
| Final backfat depth (mm) | 17.20 | 17.26 | 1.53 | 0.987 |
| Backfat depth change (mm) | 3.30 | 3.49 | 1.50 | 0.856 |
| Born alive piglets (n) | 11.16 | 10.20 | 1.42 | 0.655 |
| Dead piglets (n)3) | 1.50 | 1.20 | 0.58 | 0.437 |
| Pre-weaning mortality (%) | 13.44 | 11.76 | 3.47 | 0.563 |
| Weaned piglets (n) | 9.66 | 9.00 | 0.28 | 0.284 |
| Piglets BW at birth (kg) | 1.60 | 1.80 | 0.07 | 0.145 |
| Piglets BW at weaning (kg) | 5.82 | 6.35 | 0.41 | 0.439 |
| ADG of piglets (g/d) | 150.15 | 173.03 | 7.58 | 0.082 |
1)
Values are presented as the least squares mean of 6 replicates.
2)
CON, control sow diet based on corn and soybean meal; SDP, CON + 1% spray-dried plasma.
3)
Stillborn and piglets died before weaning.
BW, body weight; ADFI, average daily feed intake; ADG, average daily gain.