ABSTRACT

This study aims at providing a basic data for the development of high energy efficient environment system in the cage (poultry buildings) and cold potable water supply to reduce the summer heat stress. For this study, the cage area size was 273m2 and the air-to-water heat pump capacity was 20RT for heating and cooling. As the result of this study, the temperature of the drinking water supplied by heat pump was maintained at the set temperature of 15℃. However, the water temperature of control was 23~28 ℃ due to the effect of outside temperature. The average internal cage temperature was 25.3 ℃ in the test group and 28.1 ℃ in the control group, which was 2.8 ℃ higher than that of the control group. The relative humidity was 76.2% in the test group and 75.0% in the control group. The broiler drank 23.2 L / day in the test group and 21.5 L / day in the control group. Daily feed intake was 937 g and and 725 g in the cold water and control water respectively. The feed intake of 212 g was higher than that of cold water. The feeding rates were 1.8 and 1.9. Body weights were 1,523 g and 1,164 g in the cold water and control water respectively. The weight gain was 359 g in the test group fed with cold water and 392 g in the control group. When compared with the control group, the mortality rate was reduced by 84% in the cold water feeding test. It is necessary that future research will continue to reduce the incidence of such livestock accidents.’

KEYWORD

Heat pump, Drinking water, Poultry, Poultry buildings, environment

REFERENCES(9)open

  1. [book] Rural Development Administration / 2008 / Energy retrenchment of controlled horticulture on guidebook / : 11

  2. [jounal] 백이 / 2015 / 온수패드를 이용한 호접란 재배용 베드 국부난방 효과 / 한국기계기술학회지 17 (5) : 1037 ~ 1043

  3. [jounal] 서광수 / 2012 / 에너지사용계획 협의제도 영향 분석 / 한국기계기술학회지 14 (4) : 49 ~ 56

  4. [report] B. J. Hwang / 2014 / Development of skills for minimizing damage from heat wave in broilers

  5. [report] B. S. Jun / 2009 / A study on the livestock damage from heat wave

  6. [report] H. C. Choi / 2012 / Development for environmental friendly and low energy input poultry production system

  7. [report] G. S. Han / 2012 / Development of a ventilation system of broiler house using heat recovery ventilator

  8. [jounal] 문종필 / 2015 / 공기열 히트펌프와 경유온풍기의 하이브리드식 최적운용기술연구 / 한국기계기술학회지 17 (5) : 1098 ~ 1106

  9. [jounal] 백이 / 2016 / 히트펌프를 이용한 계사 냉난방 공조 및 음용수 급수병행시스템 최적 설계 / 한국기계기술학회지 18 (1) : 141 ~ 147