C. orientalis breeding

TJ

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Tim Johnson
3 very gravid females:

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(Message edited by TJ on March 18, 2006)
 
My CO rarely use elodea to lay eggs. They love to use my Hygrophia Spermapha.

I never know that you will post pictures of CO, cause I thought CO is too common from you. haha...

Anyway, those females are really fatty. I think you will get a lot of eggs.
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Hello C. orientalis' breeders! I breed C.o. during 7 years. I experiment constantly on Fn. I make a selection in 4 directions of variety of the newts, but the better result I have gotten in the "pink-pale speckled" coloration.
For comparison I have taken a photograph of one normal juvenile. My females of c.o. spawn 2 times a year, the favourite plant - elodea.

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Nicely mottled juvies you have there, Alexander
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What food are you raising them on?
 
Hi Tim!
I am raising my cynops (and other newts) by smallest earthwarms. I breed a fair amount of earthwarms in my "vermiculators" so I have no problems with feeding of my newts during 12 months.
 
Tim/Alexander: How many eggs do you tend to get per female? Mine aren't very prolific most of the time compared to what I've seen on the forum...maybe I can save a dozen to 20 eggs in a month(the newts are eating their eggs though). Also they have never been quite as plump as Tim's photos except perhaps a day or two after eating. Your feeding schedule and amount is probably more than what I have been feeding mine however. I've been feeding mainly redworms so that also might be a reason. They seem to really enjoy the meals they get frozen bloodworms in.

Alex: In 7 years, how many generations of C. o have you gotten through? How long does it take for you to raise them to adult? Do you raise the juvies aquatically? Also, how far apart from wild type are your "strains".

I am with Ian on the eggs. I've never seen mine use Elodea(that would be great if they did as I have a lot of it). Mine use the leaves of small java ferns(which are about the size of Hygrophila leaves).

Great to see some talk on this species.

(Message edited by fishkeeper on March 21, 2006)

(Message edited by fishkeeper on March 21, 2006)

(Message edited by fishkeeper on March 21, 2006)
 
Hi Joseph!
My average statistical female lays eggs during 2 months (approx 70-80 eggs). My eldest female is usually more plump before spawnings. I feed my C.o. 2(3) times a week by earthwarms.

During 7 years I have gotten 4 generations (F4). Newts become sexually mature in one and a half year. After metamorphosis I keep juveniles in the terrestrial phase during 1-2 months and next I raise then aquatically. (In the water juvies grow quickly). I make a selection at the first stage.

My "strains" are F3. In 2004 and 2005 I have gotten 5 albinos of C.o!!! But they were very weak and died during several weeks. But I hope raise at least 1 albino...

It is very strange that your and Ian's c.o. don't use Elodea... I can supply only one explanation: you and Ian live in the Western hemisphere (USA and Canada) and we with Tim in the Eastern hemisphere (Russia and Japan)
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I forgot to tell you that my "mottled" juvies hatch from white eggs (without brown hemisphere)
 
Alex,
I'm curious if you have picture of what the adults of the mottled form look like, it would be interesting to see how the color develops. I have always been interested in trying to select for specific colorations/characteristics, I guess I have two species to do that with now, so we'll see.
 
What do you feed your juveniles in the terrestrial stage? How often?

I'd be interested in seeing photos of adults of your selected strains also.
 
Dear Garrison and Joseph, naturally I have photos of selected strains, but I write an article about my experiment on Cynops orientalis (and the experiment is not consummate) so, please, wait a little.

I (from time to time) broach a subject of coloration mutation of newts:
http://www.caudata.org/forum/messages/8/45486.html?1129995571

I feed my juveniles in the terrestrial and aquatic stages ONLY smallest earthwarms from tweezers.

I concluded that there are two very convenient species of newts (Axolotls not counted) for experimentation with coloration: Cynops orientalis and Triturus dobrogicus (macrosomus/dobrogicus). But C.o. is more genetically plastic species. Moreover C.o. become adult rapidly that T.d.d/m.
 
Hello Alexander:

Based on the fact that you allow the juveniles to be on land for 2 months does this mean that you haven't had good success trying to raise them semiaquatically?
 
My forcible decisions to replace C.o. juveniles in the water after 1-2 months after metamorphosis is due to the 3 facts:
1) in the water juveniles grow and become sexually mature quickly than in the land. (I am selectionist therefore I cannot to waste time).
2) juveniles contaminate the land by excrements very quickly and it can be cause of illness.
3)when juveniles live in the land, I have to feed each juvenile by small earthwarms from tweezers.

P.S.
It isn't possible to raise them "semiaquatically": the juveniles avoid water. Some postmetamorphosed newts (1-2 weeks) often drown in the water part with larvae.
 
When the morphs are on land...do you keep them on paper towels or on some kind of substrate? I'm keeping two over some worm bin soil(mixture of potting mix decomposed paper/cardboard/ and whatever the worms leave in it). So far with only 2 I have not had to change this out...though you probably keep large numbers of morphs.

Thank you for all this information. Should help me out with raising some more of these guys
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(Message edited by fishkeeper on March 25, 2006)
 
On the pages of "the Moscow international internet-club" (www.caudata.ru) you can found a good article of Max Sparreboom about Cynops ( http://www.caudata.ru/max/mspage.htm ). He writes there "Coarse gravel creates a larger surface, that gives room to a rich micro-fauna. In aquariums without a filter such as mine, this helps to absorb organic excretory matter."

I made sure of his words. I use as land a mound of crushed gravel (granite). The average diameter of granite grain is 5 mm. The substrate keeps very well capillary humidity, very easy for ablution but the main merit is the neutralization of morbific bacteriums and absorption of organic excretory matter.
 
I have around 40+. They hatched around august to October last year. So I say a little bit over 1/2 yearold.
 
Wow! What/how do you feedthem all. Also, what are the plans when they grow up?

How many females mothered this batch?
 
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