Table 2. Effects of feeding frequency on reproductive performance of lactating sows during summer

Item T1 T2 SEM p-value
Parity 3.80 3.77 0.27 0.932
Sow body weight (kg)
 Lactation (dL) 248.19 242.44 4.20 0.337
 Weaning 225.01 224.04 3.75 0.876
 Change, - 23.18 18.40 1.10 0.003
Sow backfat thickness (mm)
 Lactation (dL) 20.63 20.22 0.51 0.360
 Weanling 15.82 16.33 0.39 0.281
 Change, - 4.82 3.88 0.22 0.002
Daily feed intake (kg/d) 5.14 5.47 0.11 0.018
Weaning to estrus interval (d) 4.97 4.57 0.24 0.253
T1, 3 feeding time per day (06:00, 11:00, and 17:00); T2, 4 feeding time per day (06:00, 11:00, 17:00, and 22:00); SEM, standard error of means.