As said, they do not need to reinvent the wheel here. In the old days similar culling was not designed to make profit, and expenses were barely covered by selling. Elephant products made a big difference, and personally I hope and suspect ellies are also being culled and sold/distributed as 'goulash", but that is very specialised indeed.
With elephant you need to cull a whole herd, down to the babies now, as there is little space for relocation anymore. (There is obviously plenty of space in neighbouring countries, but at the moment they will just be poached there.)
One immobilises the herd matriarch, and all the rest of the herd gather around that individual, so easy to dart them and they don't move. The scoline/M99 suffocates them within a few minutes, which is a bit of a problem but there is nothing better yet. So they die in a neat heap, making it very easy to process!
Culling ellies would almost overfeed communities, while also saving Kruger from eventual decrepancy, as they are breeding wildly out of control now.
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