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

同样，奶牛瘤，也就是她，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停留时间更长，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菌数量，从而限制甲烷。

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

瘤是最大一个，它可以作为食物存放和发酵储存单元。

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， 微物分解草等纤维植物，并释放出甲烷作为副品。

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和减少瘤被称为原动物特定寄虫来减少甲烷。