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Annulata eggs cooking

bisch7 May 06, 2014 08:33 AM

Has anyone played around with different temps while incubating eggs as far as male/female ratio and time? Mine are holding right at 87 degrees.

Replies (2)

AaronBayer May 06, 2014 11:35 AM

I've almost always kept colubrid eggs around 75 to 82 and though I havent kept exact records of sex rations, i'm comortable saying I average about 60% females to 40% males across the board.

I've never heard of temps having an impact on snakes sexes... just geckos and crocadilians. thats not to say that it doesnt and i just havent learned about it yet.

Sunherp May 06, 2014 02:00 PM

Lampropeltine Colubrids have defined and identifiable sex chromosomes. They use the ZW system like birds, rather than the XY system we mammals use. As such, their sex determination is genetic (frequently called GSD) rather than temperature-dependant like that seen is some geckos and some Chelonians. Hope that helps.

Also, watch that 87F incubation temp. Your eggs are likely to develop very quickly and you may end up with tiny hatchlings as a result. Lower temperature generally equates to more robust hatchlings (within reason).
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