I also advise euthanasia before feeding the ferret off, there is no way it's safe to live-feed a ferret to a snake. They are literally built for hunting, your snake would end up being the feeder. As for culling method, I'm not sure what is advisable, since they are larger than rats, I don't know if CO2 would be effective as a humane euth procedure.

I hope you wouldn't be paying more than a few bucks per pound of ferret, too. paying pet prices for feeders is wasteful, imo.

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