Table 4.
Effects of dietary supplementation of Saccharomyces cerevisiae fermentation product during late pregnancy and lactation on lactation performance of sows in a subtropical climate (Mean ± SE)*.
| Item | L-THI | H-THI | P-value | ||||
|---|---|---|---|---|---|---|---|
| Control diet | SCFP diet | Control diet | SCFP diet | THI | Diet | THI × Diet | |
| N | 30 | 30 | 30 | 30 | |||
| No. of piglets per litter after cross-foster | 10.4 ± 0.232 | 10.3 ± 0.211 | 9.6 ± 0.303 | 10.7 ± 0.244 | 0.436 | 0.126 | 0.263 |
| Birth weight after cross-foster (kg) | 15.6 ± 0.421 | 15.3 ± 0.451 | 14.4 ± 0.662 | 16.1 ± 0.571 | 0.742 | 0.183 | 0.072 |
| Individual piglet weight after cross-foster (kg) | 1.51 ± 0.032 | 1.48 ± 0.043 | 1.50 ± 0.042 | 1.50 ± 0.041 | 0.939 | 0.837 | 0.738 |
| No. of pigs weaned/litter | 9.14 ± 0.271ab | 9.09 ± 0.262ab | 8.77 ± 0.261b | 9.86 ± 0.362a | 0.484 | 0.073 | 0.049 |
| Litter weight at weaning (kg) | 45.6 ± 2.16 | 48.1 ± 1.54 | 42.4 ± 1.50 | 48.0 ± 2.14 | 0.382 | 0.032 | 0.405 |
| Individual pigs weight at weaning (kg) | 4.96 ± 0.153 | 5.32 ± 0.132 | 4.85 ± 0.121 | 4.91 ± 0.162 | 0.072 | 0.138 | 0.281 |
| Piglet ADG (g/days) | 165 ± 6 | 183 ± 5 | 159 ± 5 | 161 ± 7 | 0.029 | 0.098 | 0.191 |
| Lactation ADFI (kg/days) | 4.59 ± 0.074 | 4.66 ± 0.103 | 4.41 ± 0.091 | 4.37 ± 0.042 | 0.003 | 0.455 | 0.815 |
| Survival rate of piglets (%) | 88.0 | 87.9 | 88.4 | 92.0 | 0.611 | 0.984 | NA |
ADG, average daily gain; ADFI, average daily feed intake; H-THI, high temperature-humidity index; L-THI, low temperature-humidity index, NA, not available.
*
Results were expressed as mean and SE except for the survival rate of piglets as percentage. Values within a row with different superscripts differ significantly at P < 0.05.