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Öğe The effects of evaporative cooling on reduction of cage house temperature and production performance of the laying hens(EUGEN ULMER GMBH CO, 2003) Ugurlu, N; Kara, MThis study was conducted at two cage houses with a capacity. of 20.000 birds each in Konya - Turkey. In one house, mechanically ventilation and evaporative cooling system was used, and the other house was naturally ventilated. Daily temperature changes of houses, egg production, mortality and rate of cracked eggs of laying hens were determined. Inside temperature was reduced effectively in the evaporatively cooled house and the climate was less stressing for laying hens in summer. However, inside temperature was higher in the naturally ventilated house causing stress in layers. Average temperature was 22.6 degreesC and 27.5 degreesC in evaporatively cooled and naturally ventilated house, respectively. Egg production of laying hens in evaporatively cooled house was 4.28% higher than in naturally ventilated house, and it was affected significantly by evaporative cooling (P < 0.05). The cracked eggs numbers increased in the evaporatively cooled house (P < 0.05).
