家畜的粪便是温室气体的一大来源，为了减少家畜随地排泄对环境的危害，德国科学家对奶牛进行了如厕训练，结果发现，牲畜比人们想的更聪明。
If you can potty-train a child, you can potty-train a cow. At least, that was the theory a group of researchers in Germany decided1 to test, in a bid to find a solution to the environmental damage caused by livestock2 waste.
如果你可以训练孩子使用便盆，你也可以对奶牛进行如厕训练。至少，这是一群德国研究员决定验证的理论，目标是解决牲畜粪便危害环境的问题。
"It's usually assumed that cattle are not capable of controlling defecation or urination," said Jan Langbein, co-author of a study published Monday in the journal Current Biology.
这项研究本周一（9月13日）发表在《当代生物学》期刊上。该研究的合著者扬·朗本说道：“人们通常认为，家畜无法控制大小便。”
Farmed cattle produce roughly 66-88 pounds of feces and 8 gallons of urine each day and are free to relieve themselves where they please. However, the spread of their waste into the soil can have negative effects on the environment.
在农场饲养的牲畜每天大约会排出66到88磅粪便和8加仑尿液，而且，他们都是随地大小便。但是，它们的粪便渗入泥土中会对环境产生负面影响。
Agriculture is the largest source of global ammonia emissions3, and livestock farming makes
网友评论