It doesn't even start with the cow! The cow is the index case of microbiome über alles, that is the cow cannot digest grass at all but rather it is colonized

It doesn't even start with the cow! The cow is the index case of microbiome über alles, that is the cow cannot digest grass at all but rather it is colonized with bacteria that eat the grass and then the cow eats the bacteria and the volatile fatty acids made by the bacteria.