Effect of Heat Stress on Laying Hen Performance

더위 스트레스가 산란계의 생산성에 미치는 영향

  • Published : 2008.12.31


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.


laying hen;heat stress;daily maximum temperature;feed intake;water intake


  1. Korean Poultry Association (2006) Manual of Layer Raising Management
  2. Lee, B. D. (1994) Effect of Increased Water Intake on the Alleviation of Heat Stress in Chicken. Journal of Korean Society Of Poultry Science vol 21(2), 93-99
  3. National Agricultural Products Quality Management Service in Republic of Korea (2007) The Korean Agriculture Statistics-The part of Livestock
  4. Deaton, J. W., Reece, F. N. and Lott, B. D. (1986) Effect of Summer Cyclic Temperatures Versus Moderate Temperature on Laying Hen Performance. Poultry Science vol 65, 1649-1651
  5. Miller, P. C. and Sunde, M. L. (1975) The Effects of Precise Constant and Cyclic Environments on Shell Quality and Other Lay Performance Factors With Leghorn Pullets. Poultry Science vol 54, 36-46
  6. Deaton, J. W., Reece, F. N., Mcnaughton, J. L. and Lott, B. D. (1981) Effect of Differing Temperature Cycle on Egg Shell Quality and Layer Performance. Poultry Science vol 60, 733-737
  7. Emery, D. A., Vohra, P. and Ernst, R. A. (1984) The Effect of Cyclic and Constant Ambient Temperatures on Feed Consumption, Egg Production, Egg Weight, and Shell Thickness of Hens. Poultry Science vol 63, 2027-2035
  8. Gwak, J. H. (1998) Livestock Management
  9. Kim, Y. B., Park, J. C., Lee, S. K., Kim, S. T., La, W. J., Huh, M. R. and Jeong, S. W. (2006) Analysis of Cooling Effect on the Plastic Film Cover of Greenhouse Module Depending on the Shade and Water Curtain. Journal of Bio-Environment Control vol 15(4), 306-316
  10. Kim, J. M., Lee, D. S., Chung, S. B. and Oh., S. J. (1990) Studies on Decision of Suitable Housing Density in Caged Laying Hens. Journal of Korean Society Of Poultry Science vol 17(4), 318-326
  11. Sainsbury, D. and Sainsbury, P. (1979) Livestock health and housing 2nd edit. Bailliere Tindall. London
  12. Muller, W. H. (1966) Effect of rapid temperature changes on acid-base balance and shell quality. Journal of Poultry Science vol 45, 1109-1118
  13. Jeon, J. H. Yeon, S. C., Choi, Y. H., Min, W., Kim, S., Kim, P. J. and Chang, H. H. (2006) Effects of chilled drinking water on the performance of lactating sows and their litters during high ambient temperatures under farm conditions. Livestock Science vol 105, 86-93