2Bohmanova J, Misztal I, Cole J B. Temperature-humidity indices as indicators of milk production losses due to heat stress [J]. J Dairy Sci, 2007, 90: 1947-1956.
3Ravagnolo O, MisztalI, Hoogenboom G. Genetic component of heat stress in dairy cattle, development of heat index function[J]. J Dairy Sei, 2000, 83: 2120-2125.
4Brouk M J, Smith J F, Harner J P. Effect of sprinkling frequency and airflow on respiration, body surface temperature and body temperature of heat stressed dairy cattle [A]. In: Proceedings of the Fifth International Dairy Housing Conference [C]. Joseph, Mieh:ASAE St. 2003. 263-268.
5Kabuga, J D, Sarpong K. Influence of weather conditions on milk production and rectal temperature of Holsteins fed two levels of concentrate[J]. Int J Biometeorol, 1991, 34:226-230.
6Mitlohner F M, Morrow J L, Dailey J W, et al. Shade and water misting effects on behavior, physiology, performance, and carcass traits of heat-stressed feedlot cattle[J]. J Anim Sci, 2001,179: 2327-2355.
7West J W, Mullinix B G, Bernard J K. Effects of hot, humid weather on milk temperature, dry matter intake, and milk yield of lactating dairy cows[J]. J Dairy Sci, 2003, 86: 232-242.
8Ravagnolo O, Miztal I. Genetic component of heat stress in dairy cattle, parameter estimation[J]. J Dairy Sci, 2000, 83(9): 2126- 2130.
9Wilson S J, Marion R S, Spain J N, et al. Effects of controlled heat stress on ovarian function of dairy cattle[J]. J Dairy Sci, 1998, 81: 2124-2131.
10West J W. Effects of heat-stress on production in dairy cattle[J]. J Dairy Sci, 2003, 86: 2131-2144.
