Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Estimation of THI Index to Evaluate Thermal Stress of Piglets in Summer Season

하절기 자돈 고온 스트레스 평가를 위한 THI 지수 모의

  • Ha, Taehwan (Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Kwon, Kyeong-seok (Animal Environment Division, National Institute of Animal Science, Rural Development Administration) ;
  • Lee, In-bok (Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Kim, Rack-woo (Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Yeo, Uk-hyeon (Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Lee, Sangyeon (Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Choi, Hee-chul (Animal Environment Division, National Institute of Animal Science, Rural Development Administration) ;
  • Kim, Jong-bok (Animal Environment Division, National Institute of Animal Science, Rural Development Administration) ;
  • Lee, Jun-yeob (Animal Environment Division, National Institute of Animal Science, Rural Development Administration) ;
  • Jeon, Jung-hwan (Animal Environment Division, National Institute of Animal Science, Rural Development Administration) ;
  • Woo, Saemee (Animal Environment Division, National Institute of Animal Science, Rural Development Administration) ;
  • Yang, Ka-young (Animal Environment Division, National Institute of Animal Science, Rural Development Administration)
  • Received : 2018.06.15
  • Accepted : 2018.07.04
  • Published : 2018.07.31
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Abstract

Thermal stress of pigs causes decreased feed consumption and weight gain rate, immunosuppression, reproductive disorders, and increased mortality. The concept of the temperature-humidity index (THI) has been widely used to evaluate the degree of thermal stress of pigs. However, use of this concept is strongly restricted for animals living in the enclosed facilities. In this study, Building Energy Simulation (BES) technique was used to realize the energy flow among outside weather conditions, building materials, and animals. Especially, mechanisms of sensible and latent heat generation from pigs according to surrounding air temperature and their weight were designed to accurately evaluate the THI values inside the pig house. The THI values computed by the BES model were compared to those calculated by method of the report (NIAS, 2016), the model of this study predicted the start date of heat stress about 9~76 days earlier compared to the NIAS model. Results of the BES model also showed higher frequencies of the THI above the THI threshold for pigs, indicating that conventional model has a possibility of underestimating the degree of heat stress of pigs.

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References

  1. Alvarez-Sanchez, E., G. Leyva-Retureta, E. Portilla-Flores, and A. Lopez-Velazquez, 2014. Evaluation of thermal behavior for an asymmetric greenhouse by means of dynamic simulations. DYNA 81(188): 152-159. doi:10.15446/dyna.v81n188.41338.
  2. Collin, A., J. van Milgen, S. Dubois, and J. Noblet, 2001. Effect of high temperature on feeding behaviour and heat production in group-housed young pigs. British Journal of Nutrition 86: 63-70. https://doi.org/10.1079/BJN2001356
  3. Dikmen, S., and P. J. Hansen, 2009. Is the temperature- humidity index the best indicator of heat stress in lactating dairy cows in a subtropical environment?. Journal of Dairy Science 92: 109-116. doi:10.3168/jds.2008-1370.
  4. Ferrari, S., A. Costa, and M. Guarino, 2013. Heat stress assessment by swine related vocalizations. Livestock Science 151: 29-34. https://doi.org/10.1016/j.livsci.2012.10.013
  5. Ha, T., I. B. Lee, K. S. Kwon, and S. W. Hong, 2015. Computation and field experiment validation of greenhouse energy load using building energy simulation model. International Journal of Agricultural and Biological Engineering 8(6): 116-127. doi:10.3965/j.ijabe.20150806.2037.
  6. Ha, T., K. S. Kwon, S. W. Hong, H. C. Choi, J. Y. Lee, D. H. Lee, S. Woo, K. Y. Yang, R. W. Kim, U. H. Yeo, S. Y. Lee, and I. B. Lee, 2018. Estimation of THI index to evaluate thermal stress of animal-occupied zone in a broiler house using BES method. Journal of the Korean Society of Agricultural Engineers 60(2): 75-84. https://doi.org/10.5389/KSAE.2018.60.2.075
  7. Hong, S. W., I. B. Lee, H. K. Hong, I. H. Seo, H. S. Hwang, J. P. Bitog, J. I. Yoo, K. S. Kwon, T. Ha, and K. S. Kim, 2008. Analysis of heating load of a naturally ventilated broiler house using BES simulation. Journal of the Korean Society of Agricultural Engineers 50(1): 39-47. doi:10.5389/KSAE.2008.50.1.039.
  8. Jang, J. C., E. C. Kang, and E. J. Lee, 2009. Peak cooling and heating load and energy simulation study for a special greenhouse facility. Journal of the Korean Solar Energy Society 29(1): 72-76.
  9. Kim, K. H., K. S. Kim, J. E. Kim, K. H. Seol, J. K. Hong, Y. H. Jung, J. C. Park, and Y. H. Kim, 2014. Changes of serum electrolytes and hematological profiles in Yorkshire at a high ambient temperature. Journal of Agriculture & Life Science 49(1): 103-113. https://doi.org/10.14397/jals.2015.49.1.103
  10. KMA, 2012. Report of prediction of climate change in Korea, Korea Meteorological Adimistration.
  11. Kwon, K. S., I. B. Lee, and T. H. Ha, 2016. Identification of key factors for dust generation in a nursery pig house and evaluation of dust reduction efficiency using a CFD technique. Biosystems Engineering 151: 28-52. https://doi.org/10.1016/j.biosystemseng.2016.08.020
  12. MAFRA, 2018. Ministry of Agriculture, Food and Rural Affairs.
  13. MWPS, 1983. Swine Housing and Equipment Handbook 4th Edition, Midwest Plan Service.
  14. NIAS, 2016. National Institute of Animal Science. http://nias.go.kr. Accessed 15, April, 2018.
  15. NIAS, 2016. Report of development of livestock adaption tool for climate change, National Institute of Animal Science.
  16. NRC, 1971. A guide to environmental research on animals, National Academy of Sciences.
  17. Patience, J. F., J. F. Umboh, R. K. Chaplin, and C. M. Nyachoti, 2005. Nutritional and physiological responses of gropwing pigs exposed to a diurnal pattern of heat stress. Livestock Production Science 96: 205-214. https://doi.org/10.1016/j.livprodsci.2005.01.012
  18. Perdersen, S., and K. Sallvik, 2002. Heat and moisture production at animal and house levels, 4th Report of Working Group on Climatization of Animal Houses, CIGR, Horsens.
  19. Quiniou, N. J., D. Renaudeau, J. Milgen, and S. Dubois, 2001. Modelling heat production and energy balance in group-housed growing pigs exposed to cold or hot ambient temperatures. British Journal of Nutrition 85: 97-106. https://doi.org/10.1079/BJN2000217
  20. Renaudeau, D., 2005. Effects of short-term exposure to high ambient temperature and relative humidity on thermoregulatory responses of European (Large White) and Carribbean (Creole) restrictively fed growing pigs. Animal Research 54: 81-93. https://doi.org/10.1051/animres:2005005
  21. Renaudeau, D., M. Kerdoncuff, C. Anais, and J. L. Gourdine, 2008. Effect of temperature level on thermal acclimation in large white growing pigs. Animal 2(11): 1619-1626. https://doi.org/10.1017/S1751731108002814
  22. Swiergiel, A. H., 1998. Modification of operant thermoreulatory behavior of the young pig by environmental temperature and food availability. Physiology & Behavior 63(1): 119-125. https://doi.org/10.1016/S0031-9384(97)00400-9
  23. St-Pierre, N. R., B. Cobanov, and G. Schnitkey, 2003. Economic losses from heat stress by US Livestock Industries. Journal of Dairy Science 86: 52-77. https://doi.org/10.3168/jds.S0022-0302(03)73583-8
  24. Suriyasomboon, A., N. Lundeheim, A. Kunavongkrit, and S. Einarsson, 2006. Effect of temperature and humidity on reproductive performance of crossbred sows in Thailand. Theriogenology 65: 606-628. https://doi.org/10.1016/j.theriogenology.2005.06.005