You probably know that for some years now there have been "sausages" made for snakes, consisting of various blended prey items, to replace whole prey. Some snakes will accept them, many won't, or may accept them only after being scented with what they're used to eating. Snakes have a great sense of smell & they're hard to fool.
Now just recently in the news I saw an article that artificial "meat" for humans (with no animals used whatsoever) is now being made experimentally in a laboratory for human consumption- it's not on the market yet. But considering how much water, air, & land use this would save, not to mention that animals would no longer be slaughtered for food, it's probably a coming "thing" in our world.
So sure, why not? In the not too distant future, maybe we won't be using real rodents (etc) any more, except for scenting the "snausages"? (& rodents can stay alive for that).
While not grown in a lab, the success of Reptilinks shows snakes will eat processed food. So, as long as you got the taste and nutrients right, I pretty sure you could stuff those sausage casings with lab meat and a snake would eat it.
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