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더위 스트레스가 산란계의 생산성에 미치는 영향

Effect of Heat Stress on Laying Hen Performance

  • 오권영 (국립농업과학원 농업공학부) ;
  • 유병기 (국립농업과학원 농업공학부) ;
  • 장동일 (충남대학교 농업생명과학대학) ;
  • 장홍희 (경상대학교 축산학전공.농업생명과학연구원) ;
  • 권순홍 (부산대학교 바이오산업기계공학과) ;
  • 박상혁 (용인송담대학) ;
  • 이승주 (충남대학교 농업생명과학대학) ;
  • 소재광 (충남대학교 농업생명과학대학)
  • Oh, Kwon-Young (Department of Agricultural Engineering, National Academy of Agricultural Science) ;
  • Ryu, Byeong-Gi (Department of Agricultural Engineering, National Academy of Agricultural Science) ;
  • Chang, Dong-Il (Department of Bio-Industrial and Machinery, Chungnam National University) ;
  • Chang, Hong-Hee (Department of Animal Science.Institute of Agriculture & Life Sciences, Gyeongsang National University) ;
  • Kwon, Sun-Hong (Department of Bio-Industrial Machinery, Pusan National University) ;
  • Park, Sang-Hyuk (Yong-In Songdam College) ;
  • Lee, Seung-Joo (Department of Bio-Industrial and Machinery, Chungnam National University) ;
  • So, Jae-Kwang (Department of Bio-Industrial and Machinery, Chungnam National University)
  • 발행 : 2008.12.31

초록

여름철에 고온 스트레스로 인하여 산란계의 산란율이 다른 계절에 비하여 현저히 낮다. 따라서 본 연구는 여름철 기후조건에서 산란율과 계사 내 1일 최고온도 사이의 관계, 산란율과 음수량 사이의 관계, 산란율과 사료섭취량 사이의 관계 등을 구명하기 위하여 수행되었으며, 연구결과는 다음과 같다. 산란계사 내의1일 최고온도가 $33^{\circ}C$ 이상이 되었을 때 산란율이 현저히 저하되었고, 음수량과 사료섭취량이 각각 $490\;mL\;bird^{-1}\;day^{-1}$, $240\;g\;bird^{-1}\;day^{-1}$까지 증가함에 따라 산란율이 급격히 증가하였으나 그 이상에서는 거의 증가하지 않았다. 이상의 연구결과를 고려해 볼 때, 여름철에 산란계의 산란율을 향상시키기 위해서는 지붕을 충분히 단열처리하고, 만약 지붕이 단열처리 되지 않았다면 차광막을 설치하며, 하루중에 최고 온도가 되는 오후 2시경을 전.후로 지붕에 시원한 물을 살수하며, $15^{\circ}C$ 정도의 시원한 물을 제공하는 것이 바람직할 것으로 판단된다.

This study was conducted to determine the effect of heat stress on laying hen performance during summer. A total of 180 Hyline-brown layers, 98 days of age, were housed in a enclosed house. The daily maximum temperature in the house was ranged $26{\sim}36^{\circ}C$. The egg production was markedly fallen than other days when daily maximum temperature in the layer house became more than $33^{\circ}C$. As water intake and feed intake increased to $490\;mL\;bird^{-1}\;day^{-1}$ and $240\;g\;bird^{-1}\;day^{-1}$, the egg production soared. But it was hardly increased more than them. Based on these results, layer house roof should be amply insulated to improve the egg production of layers. If not insulated, the shade curtain should be installed above roof and cool water sprayed before and after 2 p.m. And layers should be provided cool drinking water of about $15^{\circ}C$ in the day time.

키워드

참고문헌

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