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Old 01-13-2009, 08:55 PM   #1
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Question inbreeding???

what happens to a molly if they inbreed. i have some fry coming and i was just wondering if something happened, what would happen.
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Old 01-13-2009, 08:58 PM   #2
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In many fish it depends on generation count. A common number for imbreeding is by the 4th-5th generations, which very well could show signs of stunted growth or other abnormalities. Eventual you get spinal damaged offspring or birth defects.
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Old 01-13-2009, 09:00 PM   #3
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so if something happens for the first time and i split them up then signs wont show and i will have healthy fish???
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Old 01-14-2009, 06:55 PM   #4
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Quote:
Originally Posted by Innovator View Post
In many fish it depends on generation count. A common number for imbreeding is by the 4th-5th generations, which very well could show signs of stunted growth or other abnormalities. Eventual you get spinal damaged offspring or birth defects.
I disagree with this figure. I've heard that you start running into trouble around the 20th or later generations (ballpark estimate) and not as soon as the 4th or 5th. Granted, if it were me breeding fish I'd try to introduce wild blood every couple of generations because I strive to produce quality not quantity. I've heard stories of guys breeding a small colony of African cichlids since the early 90's with no ill effects and they are still going strong today. It may depend on the species being bred more than anything.
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Old 01-14-2009, 07:16 PM   #5
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Definitely depends on the species, but I know it exists in specific cichlids because I have worked with such cases along with some common hobby fish. I guess my point is, and as I said before, you could start seeing abnormalities and possible (moreso in frail fish).
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Old 01-14-2009, 07:55 PM   #6
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you should be fine. I've got a brother and sister angelfish that are producing perfectly healthy fry.
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Old 01-14-2009, 09:01 PM   #7
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thank you everybody. your help means so much to me!!!
thanks
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