can mack snows be sex be controlled by temperature

[dmreptiles]

i came across a website that says mack snows can not be temperature sexed like other leopard geckos? is it true. i see alot of other sites with temp sexed offspring

 

[Airilith]

I personally do not have any experience with temperature sexing mack snows. Though I have a strong interest in it as I love mack snows. Here's a link with info on temp sexing macks.

http://www.geckoforums.net/showthread.php?t=3293&highlight=snow+temperature

 

[GroovyGeckos.com]

I have had no real luck in three seasons as far as controlling the sexes of our Macks. We have definitely hatched more males than females, but it has not seemed to matter, what temperature they were incubated at. I have hatched both male and female from both incubators.

I think it is something to do with a different subspecies. Could be that Macks are "male dominant"(there is probably an actual medical term and reason for this)? There are certain genetic traits that are only passed on to one sex or another, I am not sure if there are some that are passed mostly to one sex.(?)

Since I feel certain, the different Snow genes are related to Macks, and there is a different subspecies in the mix, this could be something that would occur in nature, as a natural adaptation.

Perhaps in whatever locality they are from, this appearance would be more likely to thrive, for camoflage purposes, different temperatures, "incubation" etc.? Then the fact the males are more prevalent, and it is a partially dominant trait, would guarantee it is quickly and easily passed on to the population. IDK just thinking out loud a bit.

 

[nwheat]

I started a thread last year to try to pool our data to find out if there really is something going on, but I got very little response. A couple of large breeders that I talked to said they didn't find anything unusual about the Macks. I incubate at 83 an only got one male out of about 15 Mack snow & super snow hatchlings. Nothing unusual there. I haven't tried incubating them for male, however.

 

[Baysidegeckos]

Every single mack snow i have tempsexed for female has came out female, and every one i have temp sexed for male has been male... it do females at 83 degress and males 89-90 degress.

 

[GroovyGeckos.com]

Interesting some are having normal results. I have have seen quite a few posts, and heard from people, that had the same problems, producing alot of males rather than females.

I am going by my first two seasons with them as I only hatched a few this last year. I know that Kelli (and some others)had the same exact results I did in the beginning, not hatching very many females. More males came from female temps, and more females came from male temps, for me, and I am pretty sure Kelli said the same thing.

I probably hatched more females in the second year, maybe it was something that is working itself out, now that they have been outcrossed, and those are being bred together, breeding more "normal" genes into them.

There was definitely something going on though.:main_yes:

 

[Baysidegeckos]

i got same results for My Super Snows i produced.

 

[GroovyGeckos.com]

Brett, but did you purchase 2nd or 3rd generation Macks for breeders? That would be my guess. You would be creating the 3rd or 4th generation, in that case, and they would have less and less of the original bloodline left in them, after breeding crosses together, etc. Like I said maybe we have been breeding the "abnormality" out of them, by adding more "normal" Leopards to them.

I am talking about the very first generation outcross here, and then breeding those F1`s together, which I did both years.

I can breed my original male to just about anything, and hatch mostly male Macks, the same goes for breeding my F1`s together. I think that the more recent generations are changing, thats all. I have some 3rd generation Macks for my Tremper Super Snow project, I will finally get a chance to breed, and we`ll see what happens with those.

 

[Baysidegeckos]

All i know is that all my mack Snows are From Kelli at Hisss and there were awsome white. I had all my female macks breeding to a male mack which was from kelli as well and all females are all from kelli, i only had 1 female mack from kelli breeding to my Aptor Male which is also from kelli. LOL everything is from kelli

 

[paulnj]

82 gave me all males and some were cooked for 48-49 days! Next year I am going 79-80 for the first 40 days, then up to 82/83!!!!

100% males at 88 though.

 

[Golden Gate Geckos]

All Mack eggs I incubated at 81 degrees came out female, and only incubated 1 clutch at 89 degrees... both males. I guess you could call mine F1's since I got them directly from John Mack.