Table 5. Effects of vitamin supplementation levels in gestation diets on reproductive performance of gestating sows
| Treatment1) | SEM | p-value |
V1 | V3 | V6 | V9 | Lin. | Quad. |
No. of piglets |
Total born | 14.56 | 14.27 | 13.64 | 15.33 | 0.495 | 0.721 | 0.336 |
Born alive | 12.00 | 13.45 | 12.09 | 13.56 | 0.435 | 0.423 | 0.995 |
Stillbirth | 1.56 | 0.73 | 1.00 | 1.56 | 0.237 | 0.904 | 0.159 |
After cross-foster2) | 12.11 | 11.84 | 11.66 | 12.00 | 0.116 | 0.626 | 0.160 |
21 day of lactation | 10.67 | 10.36 | 10.09 | 10.78 | 0.263 | 0.981 | 0.368 |
Litter weight (kg) |
Total litter weight | 20.20 | 19.44 | 18.60 | 19.98 | 0.601 | 0.794 | 0.394 |
Litter birth weight | 17.92 | 18.65 | 17.06 | 18.34 | 0.584 | 0.953 | 0.818 |
After cross-foster2) | 17.94 | 16.34 | 16.56 | 16.22 | 0.416 | 0.219 | 0.329 |
21 day of lactation | 59.71 | 54.31 | 55.07 | 56.05 | 1.897 | 0.543 | 0.497 |
Litter weight gain | 41.77 | 39.21 | 38.66 | 39.83 | 1.776 | 0.714 | 0.617 |
Piglet weight (kg) |
Piglet birth weight | 1.49 | 1.41 | 1.43 | 1.36 | 0.027 | 0.205 | 0.855 |
After cross-foster2) | 1.48 | 1.38 | 1.42 | 1.35 | 0.030 | 0.236 | 0.827 |
21 day of lactation | 5.72 | 5.30 | 5.42 | 5.19 | 0.145 | 0.302 | 0.750 |
Piglet weight gain | 4.24 | 3.92 | 4.00 | 3.84 | 0.144 | 0.427 | 0.783 |
Treatment: V1, corn-soybean meal (SBM) based diet with 1× National Research Council (NRC, 2012) vitamin requirement; V3, corn-SBM-based diet with 3× NRC (2012) vitamin requirement; V6, corn-SBM-based diet with 6× NRC (2012) vitamin requirement; V9, corn-SBM-based diet with 9× NRC (2012) vitamin requirement.
After cross-fostering day within 24 hours postpartum.
Lin., linear; Quad., quadratic.