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I was wondering if anyone knows much about Incan Milks. I have 1.1 Andeans that are 50% Het for them. I heard that with the two combined, I should have a 2 out of 3 chance of producing and Incan out of the clutch. What is everyone elses opinion on that? The two Andeans I have are about 6 months old and the female is approximatly 2 ft long with the male being about 20 inches long. When should I start breeding them? Any help would be great.

Thanks
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dschnelle73

1.1 Andean Milksnakes (possible Het for Incan Milksnakes)

Hello,
If your Incas are 50% het for Inca then your odds of producing an Inca would be 25%. That 25% would also be your best odds if both Andeans were 100% het for Inca. Your worst odds would be 1 in 16. Because you could possibly have a male normal and a female normal. You could have a male normal and female het. You could have male het and a female normal. You could have a male het and a female het. Breeding a normal to a het gives you what you have 50% het for Inca. This is from the fact that 50% of the clutch will be normal Andeans and 50% of the clutch will be Het for Inca. An Inca to an Inca will give you 100% Inca. Inca to Het Inca will give you 50% het and 50% Inca. The earliest you should breed your Andeans are in 2007. That is that they are big enough. I hope this helps you.
Sean

>>Hello,
>> If your Incas are 50% het for Inca then your odds of producing an Inca would be 25%. That 25% would also be your best odds if both Andeans were 100% het for Inca. Your worst odds would be 1 in 16. Because you could possibly have a male normal and a female normal. You could have a male normal and female het. You could have male het and a female normal. You could have a male het and a female het. Breeding a normal to a het gives you what you have 50% het for Inca. This is from the fact that 50% of the clutch will be normal Andeans and 50% of the clutch will be Het for Inca. An Inca to an Inca will give you 100% Inca. Inca to Het Inca will give you 50% het and 50% Inca. The earliest you should breed your Andeans are in 2007. That is that they are big enough. I hope this helps you.
>> Sean

Sean,
Thanks for that info. I am new to the milksnake world, because I used to own Balls before but never bred them. So I have to wait until they are roughly 2 1/2 years old? I dont think I will have much of a prob with them being big enough because they eat like horses. I am feeding them each small fuzzies twice a week. So have you seen or know much about Incas? I have only seen one of them and the breeder I bought my Andeans owns it. I believe it is a female, so if you know of anyone with a male Incan (you get the picture). Thanks again for your info. I will try to get some nice pics of the after their shed and get them posted.
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dschnelle73

1.1 Andean Milksnakes (possible Het for Incan Milksnakes)

If your Incas are 50% het for Inca then your odds of producing an Inca would be 25%.....Your worst odds would be 1 in 16

This is not correct. There aren't worst odds and best odds.

The odds of producing an inca from this pairing is equal to the odds of producing one if both parents are hets multiplied by the probability of the male being het and the probability of the female being het.

Therefore
- odds of producing one from het x het mating = 1/4
- odds of male being het = 1/2
- odds of female being het = 1/2

total odds of producing an inca = 1/4 x 1/2 x 1/2 = 1/16 (or 6.25%).

Once you produce one (proving your pair are hets) then the odds of producing another become 25%.
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Chris Harrison

>>I was wondering if anyone knows much about Incan Milks. I have 1.1 Andeans that are 50% Het for them. I heard that with the two combined, I should have a 2 out of 3 chance of producing and Incan out of the clutch. What is everyone elses opinion on that? The two Andeans I have are about 6 months old and the female is approximatly 2 ft long with the male being about 20 inches long. When should I start breeding them? Any help would be great.

Several different issues here:
1) "Incan" is a color variety, not a type of snake, so it's a little awkward referring to "incan milks" just as it would be to refer to "albino milks" or "hypo milks," it just lacks specificity and sounds (or will sound to some) as though you're describing a subspecies of milksnake rather than a color variety.
2) does anyone know whether "inca" is a simple recessive morph? if it's not, the excellent discussions in this thread aren't appropriate. it may very well be a morph that's been demonstrated to be a simple recessive, but that's not asserted anywhere in these posts.
3) there are really TWO different math calculations of concern here:
3a) what are the odds of the parents being CAPABLE of producing "incans"--in discussing that question, it seems to me there are best and worst case scenarios--in the BEST case BOTH animals are "het" (if it's a recessive) and if each of them is a 50% possible het, from het x normal, then there's 1/4 chance of this best case scenario being reality. But there is also a worst-case scenario, where BOTH animals are NOT hets, and there's a 25% chance of that being the case, too.
3b) the second calc ulation is what percent of incan babies the pair would produce under those various scenarios (and the one-is, one-isn't scenarios, too). IF it's a recessive trait, and IF they're both hets, then 1/4 of the babies would be incans.

Can somebody address the inheritability question for Incans? And a picture would be cool.

peace
terry