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JDouglas
01-26-04, 07:44 PM
Hey, I have just written breeding info for my care sheet that will be on my website. Although I have only bred IJCP once I have read most of the books on this subject and have had many converstations with experienced breeders. I also take very good notes and have learned to watch my animals and learn from them. I would like to thank Yasser and Favelle for the info they have given. Anyway, here is some breeding info I have written. If anyone sees any discrepencies or would like to add info please let me know. Keep in mind this info is what has worked for me in Iowa, in my climate, in my snake room. It may not neccesarily work for you as well as it did for me.

<p><b><u>Breeding IJCP</b></u>
<p>Irian Jaya carpet pythons reach sexual maturity anywhere from 18 months to 3 years of age. Breeding size occurs at lengths of 3' for males and 4 ˝’ for females. Irian Jaya carpet pythons breed December through early March. They can successfully breed and reproduce without cycling but it seems that most successful breeders generally provide a period of lower temps. For me cycling is easier and it gives more control, and thus a greater degree of predictability. Many also believe cooler temperatures are necessary for proper sperm and egg production. A gradual cooling begins in early November and continues through mid to late January. To provide this gradual cooling period we turn off the hot spot at night for twelve hours. The goal is to lower the ambient temps to 70-75F at night and back to 78-80F during the day with a hot spot of 90F. I feed my Irian Jaya carpets their last meal in mid November and allow them to empty their digestive system before completely shutting off their hotspot. In early December the hot spot is completely eliminated and temperature is kept between 70-75F. Pairs are introduced in mid December and mating is usually seen at this time. In early January the hot spot of 90F is restored during the day for 12 hours. Most mating is seen in the few weeks after first introduction and again when daytime heat is restored. If the male is courting the female he will follow her around the cage and eventually lay on her to attempt cloacal alignment. Spurring activity may also be witnessed. Copulation takes place when the male inserts a hemipene into the female’s cloaca. Tail wrapping is usually seen during copulation but some lazy males may only lay their tail under the females. I keep my males with my females for four days and remove them for a two to three day rest. Misting, reduced daylight hours, and male combating may help stimulate breeding in Irian Jaya carpet pythons. The hot spot is fully restored to 24 hours a day in early February and temps are at 78-80F with a hot spot of 90F. Females will begin to have a gradual swelling in the mid body region as egg follicles are developing. Many keepers are convinced that the female is pregnant but females are not gravid until ovulation occurs. If a male is removed at this time the female is capable of absorbing these follicles. Ovulation occurs when the mature follicles are pushed down into the fallopian tubes creating a massive condensed swelling just below mid body. If sperm from copulation is present the egg follicles will be fertilized and the female will become gravid. This swelling subsides in 24 hours. After ovulation you may notice the gradual swelling move down towards the cloaca. Males can be removed after ovulation or after showing lack of interest in the female. Females will need a localized hotspot of 90F to bask on while gravid. Before becoming gravid females like to be at about 80-83 degrees and rarely use the hot spot. This may allow the female to retain sperm until she ovulates. After ovulation the female will continually bask on the hot spot. If you notice your female basking a lot she is most likely gravid and the hot spot should be provided 24 hours a day. A temp gun is a very helpful tool that can be used to monitor the female’s body temperature. An increase in body temperature to 86-90F has been observed in gravid females. You may also witness the female laying in strange positions and expose her belly scales. Females usually shed about 2-3 weeks after ovulation. She will then lay her eggs 3-4 weeks after this shed. At the end of her gestation the female may seem restless and crawl around the cage. A suitable nesting box with damp substrate should be placed in her cage or eggs may be laid randomly in the enclosure. A small water bowl may also be placed in her cage to avoid the eggs being laid in the water. Eggs must be incubated at 88-91F with 100% humidity. The eggs will hatch about 60 days after being laid. All eggs should hatch within 24 hours of each other. If some eggs have not pipped within 24 hours of the first they can be carefully opened with scissors. Neonates may remain in their slit eggs for 24-48 hours and should not be removed. After 48 hours babies that have not left their egg can be removed. Babies will need to be kept very moist and humid until their first shed. After their first shed they can be offered their first meal.

Mardy
01-27-04, 09:46 AM
Jaremy,
Looks great, the only thing I'm doing different is
a dry nest box with shredded news paper.
Also when my temps went much past 89.5 you start to loose IJ eggs 3/4 way through incubation.

Take care
Mardy

JDouglas
01-27-04, 10:37 AM
Thanks Mardy I will make a few changes. I was wondering about the nest box! What do others use? Here is a link to the complete care sheet...

Irian Jaya Carpet Python Care Sheet (http://showcase.netins.net/web/reptiles/ijcpcaresheet.html)

JDouglas
01-27-04, 10:46 AM
I just wanted to add that I think everyone should read The Reproductive Husbandry of Pythons and Boas and that my care sheet is only a guide. Other keepers may do things differently with positive results.

Jeff_Favelle
01-27-04, 01:05 PM
I was wondering about the nest box! What do others use?

I use a small Rubbermaid with dry (ish) sphagnum moss in it.

I also incubated 2 clutches of Jungle eggs last year at 92F and had 100% hatch rate. Same with the year before. I have turned on and set the incubators to 89.5F this year. And then I have a Helix set to 91F so that the temps don't go above that. But nearly 100 babies hatched at 92F without problems.

JDouglas
01-27-04, 07:04 PM
Jeff,
With 100 babies hatched, you have proven Jungles can be incubated effectivley at 92F. Not sure why Mardy had different results. Maybe Irians are more sensitive or maybe it is incubator design. Who knows with so many variables? I feel that anyone can construct an incubator that has less than a two degree swing so I have changed my info to 88-90F on my care sheet. My incubator is set to 89.1F and doesn't fluctuate. I have also added a second thermostat that is set at 91F. It was kinda tricky but I got it. I had to turn the first thermostat way up so the second back up thermostat would regulate the incubator. Then I set it so it stayed at 91.0F for three days. Then I set the first thermostat back to its original position of 89.1F. You follow me?

My female hasn't shed yet but should soon. Her eyes are clear. I think I will use shredded newspaper in the nest box as Mardy suggested only because I have it available and its free.

Thanks again,
Jaremy

Mardy
01-27-04, 07:38 PM
Wow Jeff, thats hot but it worked.
I lost 40% a couple years ago late in the term
and the only thing I could think of was my heat.
I'm set at 88.3 as I was last year.
The first year I bred, I was scared to death of cooking the eggs so went low 87.00 and got 100%

Live and learn, and this stuff works different for different people.

This is what makes it all so fun!!

Mardy

Jeff_Favelle
01-27-04, 09:04 PM
I hear ya Mardy. I think also, I am opening and closing the incubator so much during the last 2 weeks, and the incubator(s) are in my basement (which is 65F) so that in turn cools them down by default. I want to try Chondro eggs that way! LOL!!

But yeah, this year I have it set to 89.5F and the Helix to 91F abd the Helix hasn't even kicked on yet (what a waste of $150, LOL!!).

On a side note, I've done Ball eggs at 85, 86, 87, 88, 89, 90, and 91F with 100% success at each temperature. I find that for every degree less, you have to add 1-3 days of incubation time. I like 89-90 the best for everything (everything Python, that is). For sure.

Best of luck you two! You guys rock! :D

Dom
01-27-04, 10:40 PM
I incubated at 88.5 last year and had good succes.. Only about 70% but I lost all in the fisrt 2 weeks as I was not home and someone esle was taking care of em and kept onpening closing wetting changing and so on .. Best advise.. leave it alone..

I would never do 89,5 or 90 or even 91.. just because I feel that the margin of error is really small if the incubator fluctuates.. i don't mind waiting extra fews days for a bit of security ..

Not saying it doesn't work .. just too paranoid .. Never heard of problems with invubating a bit low.. just a bit more time ..


Good Care sheet Jaremy .. I guess like everyone though .. well all do it differently .. whatever works for yur animals..

Jeff_Favelle
01-27-04, 11:16 PM
I've had more problems with incubating too low than at the higher range of the spectrum. This includes colubrids, monitors, frogs, salamanders,as well as pythons.

There is no margin of error for me as I run TWO thermostats on each incubator. I do suppose both cold miraculously crap out at the precise exact time, but I could also get hit by a bus every day I leave the house to go to work. LOL! I don't live for what "could" happen. !

:D

Tim_Cranwill
01-27-04, 11:23 PM
Jeremy, my suggestion would be to use headings and shorter paragraphs. I find it hard to read such long paragraphs on a computer screen.

Good content though. :)

Dom
01-27-04, 11:35 PM
Jeff

Maybe to you your system of incubation is full proof .. you have many many years of experience.. and found the perfect way to incubate..

This is not the case for me .. so I need to leave myself the margin of error..

Funny how u always take things to the extreme .. the bus thing is far fetched.. Its not a matter of what could happen its a matter of taking as little risk as possible ..

My oppinion .. thats all

JDouglas
01-28-04, 12:22 AM
Dom, thanks for your input and Tim thanks for the advice on the paragraphs. My brother actually mentioned the same thing! I have been trying to decide how to break up the info into paragraphs and will do so as soon as I figure out how I want to do it.

Tim_Cranwill
01-28-04, 12:26 AM
:)

That's the hard part. You know what you want to say and how to say it, but to lay it out in easy to understand terms is tough.

Just play with it. You'll find something that works. :)

Jeff_Favelle
01-28-04, 12:28 AM
Its not extreme at all Dom. I have just found that I have had more problems at the lower end of the spectrum with incubating, therefore, the decreased margin of error for higher temps is LESS of a factor for me than the adverse effects of low incubation temps. Problems like super late hatching, extrenal organs, HUGE yolk sacs, etc etc... That's all. I was just stating that I don't worry about what COULD happen if what I built screws up. I iron that all out BEFORE its built. Therefore, there is no margin of error (hopefully) and I can worry about other factors other than temperature. You see, there are soooo many gadgets and doo-dads available at our disposal, that temperatures should really be the least of our worries when incubating. I would go insane if my temps were 90F and all I did was worry that they were going to climb to 93F. Just build something that WON'T climb to 93F and you WON'T have that worry.

Cheers. :D

Dom
01-28-04, 12:54 AM
I can see your point and if you seemed to have had problems with lower temps then you obviously should keep doing what works.

To me 88.5 Is the temp I chose last year .. To me that is not that low but all my babies that hatched out were 100% heatly last year and I hope it will be the same this year..

I intend on incubating at 88.9 this year though ...

Also .. I don't just worry about temps.. I worry about everything when I have eggs.. LOL thats just the way I am man .. To me these eggs are what I have been working on and what keeping reptiles is all about .. I just don't want to screw it up thats all ..
86 or 87 is a bit low and I would not risk it but even u said u had 100% succes rate with balls at such low temps.. Not that I would try that .. To me thats a risk too...

Anywho .. we do what works for each other.. Tkae others oppinion and decided waht is best..

Tx for the input Jeff - its always a pleasure

Jeff_Favelle
01-28-04, 01:50 AM
88.5F works awesome. I did 3 clutches of Ball eggs just fine at that temp. If you do 88.5-88.9F, you will have ZERO problms regarding temps man. For sure.

Dom, if you want headaches, we should go in on some Chondros together and try to hatch some of those! LOL! I hear they are the worst! And to top it off, the babies are not guaranteed to get going either! Now THAT is a headache! :D

Best of luck this year bro. Should be a good one! :)

Dom
01-28-04, 08:36 PM
lol Jeff

Chondros.. I had one .. but long story short it was stolen from me .. I doubt Ill have any for a while money wise... I aint that rich and I can admit it .. although it sure sounds like a fun chalenge.. but right now .. My carpets all my passion .. and i have enought fun with them .. chondros are in the defenite future though ..

My biggest challenge this year is getting 100% hatch rate .. I HOPE!

Best of luck to u too man

Dom