Yeah you forgot that Tech Enable existsI understand that herds (in my case, pig) aren't supposed to give you an empire-wide resource... but why aren't those local resources having an effect on the local buildings (like butchery) ?
Ditto for Resources - Salt from the Dead Sea wonder of nature not giving a local health bonus to the butchery.
And why do they still show as if you "had" one of them (except in city screen => map bonuses list on the right) ?
You can even trade them even though you don't *really* have them... and the buildings that need it as a pre-requisite to be buildable (like Farm - Animal (Pig)) will still be ! (And only *then* they will show up in the city screen map bonuses list (as (1, -1)).
EDIT : Never mind, I think this happens because I don't have the techs to *enable* these resources yet ?
(Pig needs Canine Domestication and Salt needs Salt Processing.)