阿根廷的奶牛背“采屁包”阿根廷国家农业学院研究员吉列尔莫·贝拉在卡斯特拉尔牧场的奶牛背上放置了一个全塑储罐。从背包一端延伸的管子插入奶牛的消化腔,收集它们排放的气体。这个被戏称为“采屁包”的容器能收集奶牛每天排放的甲烷气体,每头奶牛相当于一个微型“能源站”。科学家称,一头体重550公斤的奶牛每天可排放800-1000升甲烷气体,一天可以从奶牛体内提取300升甲烷。采集的甲烷气体能转化为充足能量,使汽车行驶24个小时。 Argentine dairy cows Guillermo Bella, a researcher at the Argentinean National Agricultural College, placed an all plastic storage tank on the back of her cows in the Castellar ranch. Tubing extending from one end of the backpack inserts into the digestive cavity of the cow and collects the gas they emit. The container, dubbed the “fart”, collects the methane gas emitted by the cow every day, which equals a miniature “energy station.” Scientists say a cow weighing 550 kilograms can emit 800-1000 liters of methane gas a day and 300 liters of methane a day from the cow. The collected methane gas can be converted into sufficient energy to drive the car for 24 hours.