Same way, the cow's rumen, her stomach, is full of bugs.

同样，奶牛瘤胃，也就胃，也充满了虫子。

Foods like grass or hay stay in the rumen longer and produce more of it.

像草或干草这样食物在瘤胃中停留时间更长，产生量也就会更多。

And oregano was found to reduce the number of bacteria in the rumen to limit methane production.

牛叶被发现可以减少瘤胃中细菌数量，从而限制甲烷产生。

The largest one, the rumen acts sort of as a storage unit where food can sit and ferment.

瘤胃最大一个，它可以作为食物发酵储单元。

In the first part, called the rumen, microbes break down fibery plants like grass and give off methane as a byproduct.

在第一部分， 称为瘤胃， 微生物分解草等纤维植物，并释出甲烷作为副产品。

Other additives work too, like fatty acids which reduce methane by lowering the carbohydrate content and reducing a specific parasite in the rumen known as protozoa.

其他添加剂也起了作用，比如脂肪酸，它通过降低碳水化合物含量减少瘤胃中被称为原生动物特定寄生虫来减少甲烷。