As the ruminants then set to work, they eat down to the lower, leafier parts of the vegetation.
随后，当这些反刍动物开始行动时，它们吃到的是植物较低部位的叶子。
2
Livestock farming drives emissions of the greenhouse gas methane, from the stomachs of ruminants and especially cattle, and of carbon dioxide by increasing deforestation.
Transboundary animal diseases such as Foot-and-Mouth Disease (FMD), screwworm and peste des petits ruminants (PPR) are especially threatening in Iraq and in the region.