Item | CON | LSE | P-value |
---|---|---|---|
Number of sows, n | 405 | 392 | Â |
Average parity of sows | 1.59 ± 0.68 | 1.76 ± 0.82 | 0.56 |
Litter size, n | Â | Â | Â |
 Total born | 16.55 ± 4.55 | 17.36 ± 4.03 | < 0.01 |
 Born alive | 15.16 ± 4.02 | 15.46 ± 3.42 | 0.15 |
 healthy piglets | 13.98 ± 3.72 | 14.15 ± 3.04 | 0.26 |
 IUGR | 1.18 ± 1.68 | 1.27 ± 2.00 | 0.45 |
 White stillbirth | 1.04 ± 1.53 | 1.50 ± 1.53 | < 0.01 |
 Black stillbirth | 0.16 ± 0.52 | 0.20 ± 0.57 | 0.63 |
 Mummies | 0.17 ± 0.77 | 0.17 ± 0.49 | 0.46 |
 After cross-foster | 13.91 ± 1.30 | 13.30 ± 1.17 | < 0.01 |
 21 d of lactation | 12.86 ± 1.42 | 12.96 ± 0.81 | 0.22 |
Litter weight, kg | Â | Â | Â |
 Born alive | 19.26 ± 4.91 | 19.63 ± 3.82 | 0.37 |
 After cross-fostering | 17.94 ± 3.67 | 17.31 ± 3.58 | 0.26 |
 21 d of lactation | 64.07 ± 13.71 | 66.80 ± 12.70 | 0.04 |
Average pig weight, kg | Â | Â | Â |
 Born alive | 1.30 ± 0.21 | 1.28 ± 0.22 | 0.68 |
 After cross-fostering | 1.30 ± 0.18 | 1.30 ± 0.19 | 0.72 |
 21 d of lactation | 4.99 ± 0.97 | 5.15 ± 0.90 | 0.04 |
Average daily feed intake during lactation, kg/d | 5.75 ± 0.44 | 5.98 ± 0.54 | 0.04 |
Survival rate of piglets, % | 92.46 | 97.44 | 0.03 |
WEI, d | 7.18 ± 7.41 | 6.93 ± 5.37 | 0.42 |
Mating rate at weaning 7d, % | 86.53 | 82.02 | 0.14 |