The guys down in New Zealand have done a lot of research into aging venison as part of their very large commercial deer industry down there.
They have come to the conclusion, that for the best results a Fallow (I’m assuming your Whitetail will be similar) needs to be hung whole for a minium of 7 days before butchering.
Ideally the carcass should be hung just a couple of degrees above freezing and somewhere a draft can circulate around it.
This doesn’t mean immediately putting a warm carcass in a cold chiller however, as there is a risk of “cold shortening”. Ideally the carcass needs to slowly cool in two or three stages over the first 24 hours.
Leaving the carcass whole allows its own body weight to provide a stretching effect that helps to combat cold shortening.
Generally speaking, the older the animal the longer it should be hung.
I have eaten Fallow that had been hung for two weeks in a chiller and was just starting to smell a little “gamey”, and it was absolutely fantastic.
I should add this initial smell is not actually from the meat itself, but from any blood left on the interior surface of the carcass…a wipe with clean kitchen roll soaked in white vinegar will remove it, but its the sign that its time to butcher.
This is the ideal way to handle venison, but its not always practical depending on the circumstances when the beast was taken.
I should also add that the condition of the animal prior to the shot also plays a big part on how the venison will turn out. With Fallow and Red for instance, if you shot a mature buck/stag in or just after the rut, the carcass is usualy terrible. Shoot that same buck a month before the rut and it will be different eating…Doe’s /Hinds suffer less variance, but the carcasss from a doe/hind in milk will usually not be in as good a condition as a one that is not feeding a fawn…
Regards,
Peter