Eggs coming out wrong...

tealizard

New Member
Messages
3
Location
Canada
Hi guys,

I'm new here. I signed up to seek help.

I have been incubating some eggs from my geckos. The first baby that hatched out... well, he didn't quite. The egg dimpled, and he pipped, but it seemed like he rolled over and died in the egg. Additionally, it appeared as though he didn't absorb his yolk sac at all.

The pairing is a high yellow x blizzard, so I was expecting all normals het blizzard, provided the male didn't have some hidden genes... but this baby was white with pale patterning. I figured he was underdeveloped and that it was a fluke.

Fast forward to this evening. Same thing happened, except this baby was clearly a normal. Dimpled, pipped, rolled over and died. Yolk sac un-absorbed and still attached.

The first egg was solo (it's clutchmate was not fertilized and was tossed). This egg was not. It's clutchmate is in there looking plump and healthy (as this one did), and I'm assuming it will pip tonight... I'm afraid to see another lost baby.

There are 2 more eggs which were laid a few weeks ago. They are fertilized and healthy thus far. I'm worried I've done something wrong. They candled yellowish the first day but they have veins and are pinkish now.

The eggs are in perlite inside a sandwich container, in a small sterilite tub, the humidity is fine. The temps stay inbetween the 85-90 (but have once dropped below but not for long). Was it that temp drop that would have done it? could it just be that they are bad eggs, or that the mum isn't a good breeder?

Full disclosure: These are pet store geckos, and I chose to breed them only once to make sure I am good to go in terms of incubating more complicated eggs. I made sure I had homes prior to incubating, and those that did not go to homes would stay as housepets for myself and/or my mother who is quite fond of the little geckos as well. So these are not high class top grade geckos or anything... but they are healthy and plump, eating well, pooping well, shedding well, doing everything well... so I felt confident in allowing breeding. It was to be a one time thing with this pair (was considering further on down the road getting some higher end morphs from breeders and actually working with some in a more advanced manner in terms of genetics).

If you can offer any advice, please do. I'm devastated to see these babies die like this, and i want to do everything I can to keep it from happening to the last few eggs.
 

DrCarrotTail

Moderator
Messages
3,589
Location
Ridgewood, NJ
Sorry they didn't hatch well for you :/

IMO 85-90 degrees with a drop at one point below is a lot of temperature fluctuation. I don't know how often or how much they can take fluctuating temperatures but that seems to me to be a pretty big range. I'm not certain but I would think that could cause deformities or other problems that may not allow them to survive. Do you have them inside some sort of insulated box or incubator? If not I would consider getting one for the future. I have a Little Giant incubator that was $40 at a TSC and it keeps the temperature an almost perfectly constant 81.

How many days did they incubate before they hatched? What ratio of perlite to water are you using? Just asking to try to trouble shoot.
 

tealizard

New Member
Messages
3
Location
Canada
They are in an insulated incubator, that's the sterlite. I'm not sure the exact ratio at this point. I was going by this guide> Professional Reptiles | Leopard Gecko Egg Incubation but by this point I've just been monitoring and adding water every once in awhile via spray bottle when needed. They should have been at the 42 day mark, give or take a day based on her laying.

The unfortunate thing is, being in Canada, I'm not going to pay anything under $150 for an incubator, so I chose to make my own based on instructions found online. I won't be breeding again after this, so I don't think I'll have to worry about buying one anyway...
 

DrCarrotTail

Moderator
Messages
3,589
Location
Ridgewood, NJ
What you describe doesn't sound like an issue with the incubation medium so ratio probably isn't super important to tell, I was just asking to troubleshoot. 42 days sounds like your temperatures are closer to 86-87 degrees or so than 90. My best guess is still temperature fluctuation unless there is something genetically wrong with the babies, or the parents have some deficiency you can't tell right away, but I would think that's unlikely. Lots of fluctuation as the cells are dividing into their separate roles can have a lot of side effects. Just how much they can take and when is something I plan to hunt around for some journal articles on. I assume someone has had to do research on that topic at some point on some sort of reptile.

What I've seen used that made sense to me as a decent home-made incubator (although not sure you have the same common cheap stuff in Canada as we do in the states) is to pick up a styrofoam cooler from the supermarket (or use one you have in the house), put a shelf in it for the egg container to sit on. Fill it about half way with water (should be 4 Liters or 1 gallons at least - more is better) and use a fish tank heater to heat the water to the temperature you want. Since water loses heat much less rapidly than air it should keep the temperature in an insulated cooler much more stable.

Best of luck with the other eggs!
 

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