The impact will be felt by all.
There's already been a significant reduction in egg production as a result of housing requirements.
Seen the price of eggs lately?
Here is an article on a manure digester in Wisconsin, which leads the nation in using the digesters.
Anerobic Digesters Aren't Just for Large Dairy Farms
Keep in mind that manure, besides releasing methane to the atmosphere, is also a major source of run-off pollution that creates algae blooms and dead zones in rivers, lakes and oceans.