Bacillus subtilis QST 713 Supplementation during Late Gestation in Gilts Reduces Stillbirth and Increases Piglet Birth Weight
Table 2
Reproductive performance of the gilts at farrowing.
Parameters
Treatment
Control
value
Litter size
11.85 ± 2.19
10.67 ± 2.70
0.030
Number born alive
11.71 ± 2.18
10.23 ± 2.78
0.008
Stillbirth rate (%)
1.26 (6/478)
4.37 (20/458)
0.035
Dead born rate (%)
1.46 (7/479)
4.78 (22/460)
0.028
Incidence of stillbirth at litter level (%)
14.63 (6/41)
27.91 (12/43)
0.138
Gestation length (day)
116.12 ± 1.45
116.56 ± 1.67
0.205
Birth weight (g)
1303.94 ± 161.54
1234.09 ± 137.27
0.007
Litter weight (g)
15473.06 ± 3090.63
13174.86 ± 3332.76
0.002
SDBW (g)
85.07 ± 39.61
94.65 ± 51.86
0.343
CVBW (%)
6.42 ± 2.61
7.85 ± 5.32
0.120
Birth interval (min)
16.32 ± 9.18
16.59 ± 9.12
0.674
Farrowing duration (min)
174.39 ± 43.34
160.81 ± 44.85
0.162
The results are presented as mean ± standard deviation; : probability. Litter size included live born, stillborn, and mummified piglets. Dead born piglets included stillborn and mummified piglets. SDBW: standard deviation of mean birth weight of litter. CVBW: coefficient of variation of mean birth weight of litter.
