Convict Fry

  • We are currently upgrading MFK. thanks! -neo
Probably be more difficult to stop em breeding than to get em started!
 
You are speaking of genetic purging
Source http://www.genecomp.com/October_2000.htm

121. Genetic purging may be useless for genetic conservation
Effects of population structures and selection strategies on the purging of inbreeding depression due to deleterious mutations. 2000. Wang, J. Genetical Research 76:75-86.
The author uses simulation and theoretical analysis to come to the following overall conclusion: " it is not justified to apply a breeding programme aimed at purging inbreeding depression by inbreeding and selection to a population of conservation concern". The exception may, perhaps, be species including fish which have a high-enough reproductive rate to overcome the inbreeding depression.
If a decision is nevertheless made to undertake this controversial procedure, "The results show that the effectiveness of purging, the survival of the inbred lines and the inbreeding level attained are generally highest with between-line selection and lowest with within-line selection. Compared with no crossing, line crossing could lower the risk of extinction and the inbreeding coefficient of the purged population substantially with little loss of the effectiveness of purging.
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The theory is that after a while of captive inbreeding, the bad genes are purged & the line is pure.

They will breed, the fry will go on, unless they were cross bred with wild blood in the last couple generations, captive line inbred fish will likely be fine.

^^^ ----- or so I hear ---- ^^^​


You can allways see the bad line cast-offs in the goldfish dept. the mutants with eyebags & external brain head :ROFL: :ROFL:
 
Thanks Stinker. I'm just going to use them for feeders. I was just wondering because I got about 10 fry from somebody and I was wondering if they would breed or not.
 
We had seveal generations of fish that were from the original pair... the male just decided his daughters were pretty breedable too and they reproduced and so on and so on....
 
I adopted my neighbours Cons a couple of weeks ago, all 24 originally from the same breeding pair - couple of generations I guess as they were all different sizes.
Been feeding them well, frozen bloodworm etc., did a water change last Friday and guess what...? Yep, two pairs formed out of the group over the weekend, adult males and juvenile females, - they spawned TODAY!
So now I've got 2 sets of eggs.
Let you know how the fry turn out.
 
bmxer4ever;511328; said:
I adopted my neighbours Cons a couple of weeks ago, all 24 originally from the same breeding pair - couple of generations I guess as they were all different sizes.
Been feeding them well, frozen bloodworm etc., did a water change last Friday and guess what...? Yep, two pairs formed out of the group over the weekend, adult males and juvenile females, - they spawned TODAY!
So now I've got 2 sets of eggs.
Let you know how the fry turn out.
Click to expand...

Right on...I'm sure they'll be fine. But having a 3-eyed fish wouldn't be too bad.
 
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