COVID-19 Outbreak (Update: More than 2.9M cases and 132,313 deaths in US)

I don't know anything about it but I'd speculate that maybe the meat changes (becomes gamey) after a certain age?

Not just age, but I suspect the longer they keep them, the more it costs to keep them. Everything has a shelf life, and unfortunately that includes animals. It seems a waste to me, but I don't know what goes on behind the scenes there.