I'm posting this to show how bad fluctuations in temps during incbation is. So it may discourage people from building their own incubators when they don't know what they are doing, or constantly opening the incubator and candling their eggs, or anything else they may do to cause the temps to fluctuate. Or even someone attempting Trempers method of incubation.
As some of you know, I had a incubator issue last month and lost a lot of eggs. I've been very concerned about the ones that are still left to hatch as they were only a couple of weeks old and still at the stage where they would be developing and very vulnerable to temp changes, when my incubator malfunctioned.
This one egg had been sweating for most of the day. Tonight I decided to candle the egg to see if it was any good. While scanning the egg I noticed that it was yellow in one end and almost black in the other. The egg was due to hatch already, and way too small to have a live hatchling. I cracked open the egg, what I found was still alive. Not a pleasant sight to see. I've added notes to the photo, the skull deformity, is the brown lump, which was hard as bone. What you see is not the egg membrane around the hatchling that is actual flesh. Interesting enough I did not cut the flesh away from the head, it never grew around the head. This hatchling is as it was when I took it out of the egg. I've since put him/her down, to end it's suffering.
These images are very disturbing.....do not go on if you have a weak stomach.
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what kind of a temp variation was it? i notice that some times my hovas temp changes a degree or two up or down with the weather and i adjust it acordingly. i check it all the time or at least every hour when im home and when i leave i try to keep the room steady. i only candle the eggs in the begining when they are first layed to see if they are fertile. would that kind of temp change do something that terrible?! and you mentioned trempers temp incubation thing that he does, i think he said he heats them up after 20 days would that do the same? i guess it doesnt but you must have to be very carefull. i havent had any problems with my hatchlings yet or my babies who are turning into subs. i was thinking about trying trempers method, but now i am really scared. i do have two incubators i suppose i could try it with one clutch or one egg. sorry if this doesnt make since, im not the best writer or speller as you can tell 
