[Akyuz A., Boyaci S., Cayli A. (2010). Determination of critical period for dairy cows using temperature humidity index. J. Anim. Vet. Adv., 9 (13): 1824-1827.]Search in Google Scholar
[Armstrong D.V. (1994). Heat stress interaction with shade and cooling. J. Dairy Sci., 77: 2044-2050.]Search in Google Scholar
[Berman A. (2005). Estimates of heat stress relief needs for Holstein dairy cows. J. Anim. Sci., 83: 1377-1384.]Search in Google Scholar
[Bohmanova J., Misztal I., Cole J.B. (2007). Temperature-humidity indices as indicators of milk production losses due to heat stress. J. Dairy Sci., 90: 1947-1956.]Search in Google Scholar
[Brouček J., Novák P., Vokřálová J., Šoch M., Kišac P., Uhrinčať M. (2009). Effect of high temperature on milk production of cows from free-stall housing with natural ventilation. Slovak J. Anim. Sci., 42 (4): 167-173.Carter B.H., Friend T.H., Sawyer J.A. , Garey S.M., Alexander M.B., Carter M.J., Tomaszewski M.A. (2011). Effect of feed-bunk sprinklers on attendance at unshaded feed bunks in drylot dairies. Prof. Anim. Sci., 27: 127-132.]Search in Google Scholar
[Davis S., Mader T. (2003). Adjustments for wind speed and solar radiation to the temperaturehumidity index. Nebr. Beef Cattle Rep., 224: 48-51.]Search in Google Scholar
[Eigenberg R.A., Brown- Brandl T.M., Nienaber J.A. (2007). Development ofalivestock weather safety monitor for feedlot cattle. Appl. Eng. Agri., 23 (5): 657-660.]Search in Google Scholar
[Hahn G.L., Gaughan, J.B., Mader T.L., Eigenberg R.A. (2009). Chapter 5: Thermal indices and their applications for livestock environments. In: De Shazer J.A. (ed.). Livestock Energetics and Thermal Environment Management. ASABE. St. Joseph Mich. USA, 122 pp.]Search in Google Scholar
[Herbut P., Angrecka S. (2012). Forming of temperature-humidity index (THI) and milk production of cows in the free-stall barn during the period of summer heat. Anim. Sci. Pap. Rep. 30, 4: 363-372.]Search in Google Scholar
[Jaśkowski J.M., Urbaniak K., Olechnowicz J. (2005). Fertility disturbances caused by heat stress in cows - prophylactic measurements (in Polish). Życie weterynaryjne, 80 (1): 18-21.]Search in Google Scholar
[Kadzere C.T., Murphy M.R., Silanikove N., Maltz E. (2002). Heat stress in lactating dairy cows:areview. Liv. Prod. Sci., 77: 59-91.]Search in Google Scholar
[Lendelova J., Botto L. (2011). Evaluation of thermal-humidity index in animal housing. Bioclimate: In: Source and Limit of Social Development International Scientific Conference. Topoľčianky, Slovakia.]Search in Google Scholar
[Mader T.L., Davis M.S., Brown- Brandl T. (2006). Environmental factors influencing heat stress in feedlot cattle. J. Dairy Sci., 84: 712-719.]Search in Google Scholar
[NRC (1971). Aguide to environmental research on animals. In: National Academy of Science. Washington, DC.]Search in Google Scholar
[Ravagnolo O., Misztal I. (2000). Genetic component of heat stress in dairy cattle, parameter estimation. J. Dairy Sci., 83: 2126-2130.]Search in Google Scholar
[Romaniuk W., Overby T. (2005). Aguide to cattle housing systems (in Polish). IBMER. Warsaw.]Search in Google Scholar
[St . Pierre N.R., Cobanov B., Schnitkey G. (2003). Economic losses from heat stress by US livestock industries. J. Dairy Sci., 86 (E. Suppl.): E52-E77.]Search in Google Scholar
[Thom E.C. (1959). The discomfort index. Weatherwise, 12: 57-59.]Search in Google Scholar
[West J.W. (2003). Effects of heat-stress on production in dairy cattle. J. Dairy Sci., 86: 2131-2144.]Search in Google Scholar
[West J.W., Mullinix B.G., Bernard J.K. (2003). Effects of hot, humid weather on milk temperature, dry matter intake and milk yield of lactating dairy cows. J. Dairy Sci., 86: 232-242. ]Search in Google Scholar