Posted by:
kinyonga
at Mon Jan 8 20:51:41 2007 [ Email Message ] [ Show All Posts by kinyonga ]
I have heard of eggs containing fully formed embryos in them in both pardalis and calyptratus....but I can find no definite reasons why.
I have also read that eggs that were incubated in continuous light did not hatch well. I can't find where I read this right now.
Here are some sites with information pertaining to the above...
Ferguson in his scientific paper concluded that Panther chameleons require moderate levels of UVB. Commercial low level UVB producing bulbs (such as the Zoomed 5.0), when used correctly, produce adequate amounts for successful reproduction whereas too much UVB can negatively effect the hatchability of Panther chameleon eggs."
http://www.martinsreptiles.co.uk/ukchams/uvlightingresearch.htm
Sorry I can't give you a better answer.
"FWIW: I believe that elevated temps cause an increase in respiration inside the egg. If you increase respiration too much, you exceed the shells capability to transfer gases quickly enough and the embryo smothers. Now maybe chameleon eggs are more sensitive to this but I have seen stories of eggs going full term and babies stillborn, but perfectly formed. Even tho it takes longer, I will opt for lower temps."
http://www.bio.miami.edu/ktosney/file/BDeggs1.html
"without high UV-B irradiation, all viable eggs died at term"
http://www3.interscience.wiley.com/cgi-bin/abstract/68753/ABSTRACT?CRETRY=1&SRETRY=0
http://www3.interscience.wiley.com/cgi-bin/abstract/101523434/ABSTRACT
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