Table 4. Effects of cooling system and drink temperature on litter performance

Item 1 Coling system DWT(°C) SEM p-value
Item 2 (°C) AC CP SC MS LWT HWT C D C x D
Piglet weight (kg)
 At birth 1.33 1.30 1.35 1.33 1.32 1.33 0.03 0.579 0.847 0.759
 At weaning 6.21a 6.21a 5.89b 5.91b 6.21a 5.90b 0.06 <0.01 <0.01 0.321
Litter weight (kg)
 At birth 13.57 13.67 13.68 13.60 13.59 13.67 0.4 0.989 0.791 0.946
 At weaning 63.57 65.21 59.88 60.39 63.87 60.66 2.28 0.073 0.054 0.823
Litter size (n)
 Total born 12.50 12.33 12.17 12.25 12.21 12.42 0.46 0.904 0.53 0.814
 Weaned 10.25 10.50 10.08 10.25 10.25 10.29 0.4 0.861 0.999 0.762
SEM, standard error of means; AC, air conditioner; CP, cooling pad; SC, snout cooling; MS, mist spray; LDT, low drinking temperature; HDT, high drinking temperature; C, cooling system; D, drink temperature.