Table 2. Effects of different farrowing facilities on body weight, backfat thickness, feed intake and weaning to estrus interval in primiparous sows.
| Items | CON | LFP | SEM | p-value |
|---|---|---|---|---|
| Sow body weight (kg) | ||||
| Gestation (d 105) | 229.25 | 227.82 | 3.86 | 0.810 |
| Lactation (d 1) | 208.03 | 206.80 | 3.73 | 0.828 |
| Weaning (d 28) | 200.53 | 200.31 | 4.62 | 0.974 |
| G to L change (-) | 21.23 | 21.02 | 1.31 | 0.912 |
| L to W change (-) | 7.50 | 6.49 | 2.07 | 0.734 |
| Sow backfat thickness (mm) | ||||
| Gestation (d 105) | 26.27 | 28.23 | 0.98 | 0.171 |
| Lactation (d 1) | 25.68 | 27.50 | 1.08 | 0.251 |
| Weaning (d 28) | 21.64 | 23.86 | 0.82 | 0.070 |
| G to L change (-) | 0.59 | 0.73 | 0.21 | 0.657 |
| L to W change (-) | 4.05 | 3.64 | 1.03 | 0.781 |
| Daily feed intake (kg/d) | 4.00 | 4.16 | 0.14 | 0.475 |
| Weaning to estrus interval (d) | 5.59 | 5.45 | 0.20 | 0.622 |
Data represents means based on eleven replicates primiparous sows per treatment.
CON, conventional farrowing facilities; LFP, loosed farrowing pens; SEM, standard error of means; G, gestation; L, lactation; W, weaning.