1LEE D H. Climatic stress indices for domestic animals [J].Int J Biometeorol, 1965,9:29.
2BERMAN A, FOLMAN Y, KAIM M M, et al. Upper critical temperatures and forced ventilation effects for high-yield- ing dairy cows in a subtropical climate [J].J Dairy Sci, 1985,68: 1488-1495.
3BIANCA W. Reviews of the progress of dairy science. Section A. Physiology. Cattle in a hot environment [J].J Dairy Res,1965,32:291-345.
4ARMSTRONG D V. Heat stress interaction with shade and cooling [ J ].J Dairy Sci, 1994,77 : 2044-2050.
5BOHMANOVA,MISZTAL J I,COLE J B. Temperature-hu- midity indices as indicators of milk productior~ losses due to heatstress [ J ].J Dairy Sci, 2007,90 : 1947-1956.
6DIKMEN S, HANSENT P J. Is the temperature-humidity in- dex the best indicator of heat stress in lactating dairy cows in a subtropical environment? [J].J Dairy Sci,2009,92:109- 116.
7WEST J W, MULLINIX B G, BERNARD J K. Effects of hot, humid weather of milk temperature, dry matter intake, and milk yield of lactating dary cows [J].J Dairy Sci,2003,86: 232-242.
8IGONO M O,BJOTVEDT G,SANFORD-CRANE H T. Envi- ronmental profile and critical temperature effects on milk pro- duction of Holstein cows in desert climate [J ].Int J Biometeo- rol. 1992.36:77-87.
9COPPOCK C E. Energy nutrition and metabolism of the lac- tating dairy eow[J ] .J Dairy Sci, 1985, 68 : 3403-3410.
10CURTIS S E. Environmental Management in Animal Agricul- ture [ M ].Ames:The Iowa State Univ Press, 1983.
