Daddy spawning with Daughter?? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 22 Old 08-24-2010, 10:12 PM Thread Starter
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Yan, that's interesting to know! I might try the interbreeding after all... I'm going to have to look at it, since so many people seem to have different opinions on the topic. I do have a question, though... why do you introduce new blood after five generations? What I mean is, what stops breeders from continuing the interbreeding of a very nice line?

Thanks,

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post #12 of 22 Old 08-24-2010, 10:18 PM
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The more you inbreed, the higher the chances of 'deformed' mentally or physically fry, recessive traits popping up, etc. I believe in some cases it can also bring up infertility, malformed internal organs, etc.
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post #13 of 22 Old 08-24-2010, 10:26 PM Thread Starter
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Ahhh, that makes sense. I think the others that answered my question were worried that deformation, infertility etc. happened the first time you inbreed. From what I understand, it can happen, but the more you inbreed the higher the chances of that happening... am I right?

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post #14 of 22 Old 08-24-2010, 10:54 PM
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That is true. There is little chance of negative side effects the first or second time you inbreed but the more you do it, the higher the risk gets. The point is to only breed the best to the best.
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post #15 of 22 Old 08-25-2010, 03:53 PM Thread Starter
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OK! Thanks... You've been SUPER helpful!

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post #16 of 22 Old 08-25-2010, 04:44 PM
what yan talking about is line breeding. people in the animal trade do this.

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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post #17 of 22 Old 08-25-2010, 04:52 PM Thread Starter
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That's what I meant from the start... sorry if I wasn't clear about that, kitten.

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post #18 of 22 Old 08-25-2010, 05:03 PM
lol =p

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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post #19 of 22 Old 08-30-2010, 02:48 PM
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This is one of the most contested and confusing areas of genetics. Linebreeding is a commonly used term but very few agree on what that actual means. Inbreeding is another term which is different depending on who you speak to.

Linebreeding is inbreeding but inbreeding is not neccassarily linebreeding.

Linbreeding is the practice of tyring to extract large quantities of genetic material from ONE fish...the practice of how this is done varies and is not universally agreed upon but generally speaking means that a male fish will be mated to it's daughter, then to the offspring of that mating and so on. The idea being that the offspring will retain as much of the good qualities of the chosen fish as possible...this is a high risk strategy though because you're increasing the chances of bringing reccessive genes to the surface by allowing two copies of a defective gene to show in a single fish...if a fish only has one copy it will not normally create a problem. Although selecting from good stock helps reduce the chances of this there is no such thing as perfect genes and even great fish will carry some bad ones.

If you use a female fish some people call it family breeding, effectively though it's the same thing.

Inbreeding is more chaotic. It happens every time you mate two fish that share genetic material...the level or percentage of inbreeding is what's important to whether genetic faults will show. Too high a percentage and the risk of two faulty genes cropping up in one fish increases in the same way as linebreeding.

Linebreeding and inbreeding are both used by breeders to 'set' characteristics into their fish, it is a neccassary and normal pratice.

How much is too much? That depends on the fish selected and the percentage of inbreeding. the only way you can really tell that you have inbred too much is when you start getting faults, you then need to introduce fresh blood to eradicate them. Generally speaking one generation of inbreeding carries little risk.

Sorry for rambling
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post #20 of 22 Old 08-31-2010, 11:31 PM
inbreeding = anyone from the same family breeding with one another by choosing mates themselves

line breeding= pairs that are chosen by us to be inbred.

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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