Table 2.
Effects of ion drinking water on egg quality of laying hens under high temperature conditions

Treatments Albumen height (mm) Haugh unit Shell strength (kg/cm2) Shell thickness (mm)
TW 7.40b 84.89b 3.22b 0.348b
CW 8.25a 89.86a 4.12a 0.362a
IW 8.22a 89.86a 3.65ab 0.366a
SEM 0.14 0.81 0.10 0.004
P-value 0.02 0.01 <0.01 0.05
Value with the different letters in the column are significantly different at 5% level.
TW, tap water; CW, cold water; IW, ion water.