My personal revision and guide of Polypterus delhezi keeping.

giseok jung

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Quick view about how the patterns of Polypterus delhezi inheritate for 2 generations based on my "Wild Cross strain".

This strain contain both WC and Indonesian CB bloods and now it's second generation. (F2)

See how their pattern change after generations.

I also have Pure Wild strains and I'll share about them next time.


KakaoTalk_20200430_234618340_13.jpg

No.1 Female, Indonesian CB

KakaoTalk_20210527_224352327_01.jpg

No.2 Male, WC D.R.Congo

KakaoTalk_20231213_085742404_08.jpg

No.3, Offspring of No.1 and No.2. female fish

KakaoTalk_20240115_134529087.jpg

No.4, Male another WC from D.R.Congo.

KakaoTalk_20240115_191349475.jpgKakaoTalk_20240115_191349475_01.jpg

3 months old F2 generation fish, Offspring of No.3 and No.4.
 

giseok jung

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KakaoTalk_20240219_163304268_03.jpgKakaoTalk_20240219_163304268_02.jpgKakaoTalk_20240219_163304268.jpg

After 4 years since my last spawn of WC delhezi pair, I finally became able to get spawn from selected WC delhezi pair again.
I'm looking forward how different their pattern will be with my last Wild pair breeding and my "Wild Cross" strain.
 

giseok jung

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Dec 20, 2014
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Quick view about how the patterns of Polypterus delhezi inheritate for 2 generations based on my "Wild Cross strain".

This strain contain both WC and Indonesian CB bloods and now it's second generation. (F2)

See how their pattern change after generations.

I also have Pure Wild strains and I'll share about them next time.


View attachment 1533564

No.1 Female, Indonesian CB

View attachment 1533565

No.2 Male, WC D.R.Congo

View attachment 1533566

No.3, Offspring of No.1 and No.2. female fish

View attachment 1533567

No.4, Male another WC from D.R.Congo.

View attachment 1533568View attachment 1533569

3 months old F2 generation fish, Offspring of No.3 and No.4.
KakaoTalk_20240404_230703966_05.jpgKakaoTalk_20240404_230703966_04.jpgKakaoTalk_20240404_230703966_02.jpgKakaoTalk_20240404_230703966_03.jpgKakaoTalk_20240404_230703966_06.jpgKakaoTalk_20240404_230703966_07.jpg

I selected these 3 specimens of "Wild Cross Strain" for next generations.
It's always interesting to watch how their pattern evolve after generations.
 

giseok jung

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These are very good example of how important strain selection is when you breed Polypterus species (Actually in all other fish too).

The first three photographs are Pure Wild strain F2 (WC*(WC*WC)) and last 3 are Wild Cross strain F2 (WC*(WC*Indo CB)).
You can easily see how diverse their patterns are in pure wild strain and how stable it is wild cross strain.
 

giseok jung

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Even after 2 generations of cross breed with wild specimen (which has maximum genetic diversity) stablized genetics by inbreed from Indonesian CB strain still effect and make their pattern expression stable enough.

In the other hand, pure wilds strain all very different patterns with each others (they're only 4 specimen in that batch and there are 3 of them on the photo).

This mean if you want stable, fairly good quality, inbred strain can be a very reasonable choice for breeding project, but if you want to breed something totaly new, inbred strain will be like a curse to you and can give unbreakalbe barrior (or at least will take very long time to break) to your strain.
But wild specimens can be so unstable so there are no promise of basic quality, but if you can select and handle them good enough, you will get endless possibilities and borderless diversity for something no one ever seen before.

These are the reason why I keep seperate those two strains of delhezi for different goal and I think this can be helpful info too for someone trying to build up their own breeding strains.
 
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