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Effect of Ventilating System on the Performance of Broiler Chicks in an Environmental Controlled Cage House  

HwangBo J. (National Livestock Research Institute, R.D.A.)
Hong E.C. (National Livestock Research Institute, R.D.A.)
Lee B.S. (National Livestock Research Institute, R.D.A.)
Bae H.D. (National Livestock Research Institute, R.D.A.)
Lee S.J. (National Livestock Research Institute, R.D.A.)
Cho S.B. (National Livestock Research Institute, R.D.A.)
Kim H.K. (National Livestock Research Institute, R.D.A.)
Kim J.H. (Division of Animal Science & Technology, Gyeongsang National University)
Park B.S. (Dept. of Animal Biotechnology, Kangwon National University)
Song J.I. (National Livestock Research Institute, R.D.A.)
Publication Information
Korean Journal of Poultry Science / v.33, no.1, 2006 , pp. 57-63 More about this Journal
Abstract
This study was conducted to investigate the effect of ventilating system of environmental controlled broiler house on broiler production. Three hundred eighty four broiler chicks (Hubbard, mean live weight of $44.5{\pm}2.0g/bird$) were reared for 2 wk. The results of the present study were summarized as follows : 1. Ammonia gas production was lower in the second and the third floors of cages compared with first floor of cages 13.5 and 13.5 vs 14.6 ppm, respectively). The observations of ammonia production in the morning and afternoon were similar. The production of carbon dioxide was not different between morning and afternoon, but it was tended to decrease in the forth floor of cages due to a fresh air 2. A wind velocity in the enclosed house was similar across lower, middle and upper section (0.57m/sec, 0.22m/sec and 0.04msec, respectively). In order to maintain an optimal air flow velocity in the cages, the duct entrance was punched, and then the air flow was full-round in the overall space in the cage. 3. Daily liveweight gain, feed intakes, and feed efficiency were not significant differences among treatments during whole experimental period (P>0.05). Therefore, the present results showed that temperature, moisture and atmosphere controlling were desirable, and air flew evenly in the cage.
Keywords
broiler; enclosed broiler house; ventilation system; perforated duct;
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