Reptile & Amphibian Forums

I placed "Pictures of my ratsnakes depositing eggs" earlier. Some of them have hatched and the rest is comming within a month.
Here is the outcom so far:

Zamenis persicus Brown

Zamenis persicus Melanistic

Eastern foxsnake Pantherophis vulpinus gloydi

Best wishes
Søe

Eastern foxsnake Pantherophis vulpinus gloydi "Toledo Ohio"

Laddersnake Rhinechis scalaris

Elaphe dione Eastern China

Elaphe dione Kalgyr river Kazahstan

Natrix natrix natrix
Reptilia-Denmark

COngratulations Søe some fab results there. Love the little Diones especially the Kazahstan one .. how many days incubation did they go and at what temperature ? The brown persicus is pretty neat too

Sue x
-----
The Ratsnake Foundation Online Society

25-30 days depending on the temperature. Kept them at 25 and 27*C

Mainly males at 27*C and even at 25*C. Juveniles bigger at 25*C

All have eaten at least 3 times. THAT is nice.

Actually all babies (not natrix off course)this year are accepting mice so far.

Best wishes
Søe

Søe are you getting males alot at these temperatures ? do you think something like TSD is evident in this species. I've heard other keepers of Diones remark on sexes and incubation temperatures. Any thoughts ? Did you hatch complete clutches or lose any eggs in incubation that could of effected the sex ratio? .. I find this topic so interesting even though it is stated that snake sexes are controlled by GSD .. has there really been enough studies done to determine this with any certainty and for all species ?

Big congrats on getting the little ones feeding it makes for easier work in the reptile room this time of year.

Sue x
-----
The Ratsnake Foundation Online Society

Hi Sue

I don`t know. The idea that there could be a relation between temperature and sex ratio on some snakes came many many years ago. A friend bred Lampropeltis getulus california "Desert face" and many of them...........all males. He gave up the species after some years and about 200 males and 3 (yes only 3 females)He always incubated the eggs at a fairly high temperature. I cannot remember how high, but I think, it was more than 30*C

Since I am breeding a lot of different animals, I also have many incubators on various temperatures, and I always experiment to find the temperature, where the animals are strongest, best eaters and even sex ratio or more females.
I incubate at lower temperatures than most people here. Usually I keep the ratsnake eggs at 26,3*C, which I have found to be the best one for me on most species. But some species gives me a challenge like some dione and situla. I have bred situla since 1981 and in so many generations, that I cannot remember how many, and they still gives me far more males than females. I had the same problem with coxi, but when I lowered the temperature to 25*C and with a night cooling, I started to get more females.
I don`t keep those any more, but I got even sex ratio in the end.

Right now there are about 70 ratsnake babies. All except a very small dione ( a twin ) are eating after their first shed. That is a very good thing that saves a lot of time.

This is just my experiences, nothing else. I keep trying

Best wishes
Søe

>>

Soe, congratulations on the new babies. Good see lots of species and luck with the newborns.

Terry

Søe:

Congratulations. Nice to see all those healthy hatchlings. I hope your summer is going well and all your projects (personal and ophidian) prosper.

Best regards
John