<；P>；PROBLEM TO BE SOLVED: To provide a method for raising poultry for improving hen's egg productivity under an easy management and low cost condition, and improving the quality of hen's eggs to be produced, and to provide drinking water for egg-laying hens, to be used for the method. <；P>；SOLUTION: Water treated with photocatalyst activation is obtained by a photocatalyst activation treatment (S1) under vibration agitation of water to be primary treated. Egg-laying hens are raised while supplying the drinking water for egg-laying hens composed of neutral electrolytic water as electrolytic treatment water obtained by electrolytic treatment (S2) under vibration agitation of water to be secondary treated, which is the water treated with photocatalyst activation, containing 0.1-3 wt.% sodium chloride. The residual chloride concentration in the neutral electrolytic water is 0.5-500 ppm. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
