E. O. Krupin
Tatar Scientific Research Institute of Agriculture, FRC Kazan Scientific Center, Russian Academy of Sciences, ul. Orenburgskii trakt, 48, Kazan’, 420059, Russian Federation
Abstract. The purpose of the studies was to assess the meteorological parameters of the outdoor and indoor microclimate and their use in the analysis of heat stress using THI (temperature-humidity index) and ETI (equivalent temperature index). THI was calculated by the methods of E. C. Thom, W. Bianca, H. H. Kibler, National Research Council (NRC), M. K. Yousef, T. L. Mader et al., and A. Berman et al. ETI was determined according to the method of F. C. Baeta. We analyzed the sets of daily meteorological data from three meteorological stations of the Republic of Tatarstan (No. 27595, No. 28506, No. 28704) at the sixth, ninth, twelfth, and fifteenth Greenwich terms in June, July, and August 2015–2019. The parameters of the indoor microclimate were obtained using the temperature-humidity regression models of V.F. Vtorov et al. Stress was assessed using G. L. Hahn et al. and F. C. Baeta scales. The trends in air temperature according to the indoor and outdoor dry-bulb thermometers coincided. We registered significant interdependencies between the values of meteorological parameters (mainly at ninth and fifteenth terms) – for outdoors these were wind speed, dry bulb temperature, and relative humidity; for indoors these were dew point temperature and relative humidity. Using the THI indices for the four observation periods, we revealed that an average of 16.7% of the outdoor values and 18.8% of the indoor values corresponded to heat stress, while calculating ETI we revealed that an average of 18.6% of the outdoor values corresponded to heat stress. The largest share of indoor and outdoor heat stress values was observed at the twelfth and fifteenth terms, respectively.
Keywords: E. O. Krupin, Cand. Sc. (Vet.), head of division (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Krupin E. O. [Meteorological parameters of the environment and microclimate of the livestock house and their use in the analysis of heat stress using THI and ETI]. Dostizheniya nauki i tekhniki APK. 2021;35(6):50-6. Russian. doi: 10.24411/0235-2451-2021-10609.