Shanghai Dairy热应激体系.ppt

制订减少奶牛热应激的体系Developing Systems to Minimize Heat Stress In Dairy Cattle;热应激的作用Effects of Heat Stress;不同环境温度下对干物质总采食量和干物质公斤数的维持需要（露点=30） Total dry matter intake1 and kilograms of dry matter required for maintenance with increasing environmental temperature (dew point = 30) ;堪萨斯州不同胎次和月份的高峰产奶量 Peak Milk Production in Kansas by Lactation and Month, 1997; Nonevaporative Cooling;温度湿度指数（THI）Temperature Humidity Index (THI);牛舍内饮水供应的建议Recommendations Concerning Access to Water in Housing Areas;4排式自由卧床牛舍中牛栏和水槽的安排Pen Layout and Water Troughs Locations in 4-Row Freestall;4排式自由卧床牛舍中饮水量和水槽位置Water Consumption vs Water Trough Location in 4-Row Freestall;4排式自由卧床牛舍中水槽的利用Usage of Water Troughs in 4-Row Freestall;;;自由卧床中的饮水供应Water Availability in Freestalls;;;;挤奶厅出口道的饮水量Water Consumption at Parlor Exit Lanes;遮荫的效果Response to shade;遮荫材料差别很大！ There are differences in shade material!!;各种遮荫材料与波形铝板相比的有效性递降情况 Shade Material Listed in Descending Order of Effectiveness, As Compared With New Corrugated Aluminum;围栏牛舍的遮荫Shades in Drylot Housing;七月;空气降温系统Systems to Cool the Air;给奶牛降温的两种办法Two Ways to Cool Cows;在栓系式牛舍中给空气降温的系统Systems to Cool the Air in Tiestall Barns;湿度高会限制用蒸发降温的办法来降低空气温度的效果High Humidity Limits Our Ability to Take Advantage of Using Evaporative Cooling to Cool the Air;温度32o C 时相对湿度对蒸发降温的影响Potential Temperature at 32o C Change Due to Water Evaporation in a Low Relative Humidity Environment;相对湿度低时水分蒸发对不同环境温度的影响Potential Temperature Change Due to Water Evaporation in a Low Relative Humidity Environment;相对湿度高时水分蒸发对32o C下温度变化的影响 Potential Temperature Change at 32o C Due to Water Evaporation in a High Relative Humidity Environment;相对湿度高时水分蒸发对温度变化的影响Potential Temperature Change Due to Water Evaporation in a High Relative Humidity Environment;蒸发垫+隧道式通风Tunnel Ventilation with Evaporative Pads;密苏里州东北部的栓系式牛舍中使用隧道式通风的蒸发降温效果Effect of Utilizing Evaporative Cooling in Tie Stall Dairy Barns Eq