金沙国际唯一指定官网

Hot cow disease

作者:计坐包    发布时间:2019-03-08 10:14:15    

In tropical parts of Australia and the US, heat stress can kill cows—or at least cut milk yields. Now researchers at the University of Queensland have developed a thermal load monitor that warns farmers when their herds are at risk. The device continually measures the energy needed to keep a water-cooled matt black aluminium “football” at about 38.6 °C—the body temperature of a healthy cow. The more energy is consumed,

 

Copyright © 网站地图