지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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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±2.0 g/bird) were reared for 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 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.
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 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.
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UCI(KEPA) : I410-ECN-0101-2009-527-015599052