On prairie farms was pretty common to handle your own meat every Fall - was usual to have a "butchering day" - chickens, turkeys, a couple pigs, a beef. As I recall, the beef was dressed and skinned and the carcass was hung as long as it could be kept cool and not freeze - 10 days or more. Pigs - I have ground up pork meat while still warm from the butchering - we did not think it needed aging. So, wild game meat was sort of in between - many deer were frozen stiff by the time we got back from hunting - so about no aging occurs when frozen - and others got a day or two hanging, without freezing, before I got time to cut them up. Others that I know would have deer hanging with hide on for months - frozen solid - I am not sure what that was accomplishing - except it was not usually spoiling that way. A Ukrainian butcher in North East Sask told me he liked to hang "big" moose or elk bulls for several days or weeks in his cooler before he cuts them up - actually he said he hung them (at plus 2 C or 3 C) until the outside of the carcass felt "sticky" to the palm of his bare hand - although he cut up the smaller bulls and the cows that I got, within a day or two of me getting them.