Personally, I can't understand why so many ball python breeders slit their eggs. I don't think any other snake species breeders slit eggs before they hatch naturally, at least not in the other snake related forums I visit. (and I admit, it is really only one other forum.. well, two but one of them is for rainbow boas and well, they don't lay eggs. So it may happen more often with other pythons and colurbrids than I realize).
Only reasons I can think of to slit eggs before the baby does, is impatience, worry they will die in the shell (ie baby ball too weak to do it themselves, egg too touch etc.) or worry they will have a pretty morph die in the shell and thus, can't profit from it.
But it makes me wonder, how many hatchling ball pythons will fail to come out of egg alone, if all breeders let them hatch naturally? Also, by letting the weaker babies come out of the egg due to slitting it from them..how many of those babies end up problem eaters or failing to thrive? Or just pass on this inability to slit the egg themselves, to other generations? (this last point I kind of doubt will be an issue, I can't see not being able to slit the egg as genetic...unless its a genetic defect that prevents the egg tooth from developing properly)
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PHLdyPayne