Reptile & Amphibian Forums

I'm breeding deppei deppei. This is my third year. First year all healthy babies, second year 1 kinked snake and this year looks like 3. Can any one give me any good reason or advice?

Generally regarded as improper temperature for incubation of the eggs.

Could be an improper (as in, too high) incubation temperature, like Shadowguy already said. Could be an inbreeding depression thing. Could be both. Nutrition, maybe. Could be anything.
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I'm Dutch. Somebody shoot me.

What would be the correct incubation temperature? I just keep them on a shelf in my snake room which is between 80 and 84°.

84 is about the upper limit for colubrid eggs. No problem really, for short amounts of time. On the long run however, not so much. 80 is better.
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I'm Dutch. Somebody shoot me.

By deppei deppei I presume you're referring to the "Durango" forms that popped up in the 1990's. The city of Durango proper sits in the realm of 7300 feet above sea level. one can assume that the animals were taken from elevations of a similer nature. It is fair to say that latitude alone doesn't guarantee heat. If your first year was a success followed by subsequent failures the notion of genetic issues being the cause would seem to be in doubt. Feed your female well to help her recover her strength and try incubating at 79-80 next year. The incubation period will likely lengthen but you will hopefully be rewarded, and babies won't have to suffer deformities or early death.

Spot on answer for me there from Shadowguy, I totally advocate with incubating at lower temps and I had the best success never going above 80.

The only point I'd add is the kinking may have been caused by temp spikes during the critical stages of incubation, I've seen sudden temps spikes cause issues in the past.