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Jan 10th, 2023
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Hasn't this exact thing already been done with Tilapia and the reason most tilapia stock for grow out purposes are 98% male? I don't think the concept is new by any stretch, maybe just new to bluegill. I'd be really interested in female only LMB, especially feed trained...same for perch too. You and me both. I think there is market potential there for a creative entreprenuer. My state however says it doesn't allow geneticaly altered fish. Funny someone needs to tell them the triploid carp are genetically altered as are triploid rainbows which are common place now if you get the eggs from Trout Lodge. 
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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Luara Tiu of the Piketon research center has already responded back to some questions I had namely more specifics on what temperatures or temperature ranges will skew bluegill offspring to mostly males. She has promised me Dr. Wang will get back to me and I'll be glad to share it with you all here.
If I could skew smallmouth bass to primarily males that would be a plus too as although there isn't much of a size difference in the two sexes, one large aquarium has told me they have problems with egg bound females.
Considering my fish are not for the food market I'm going to look more into using hormones to influence sex also. Male perch except for broodstock are virtually worthless for me as they are the runts of the two sexes.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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Interesting stuff. I seem to vaguely remember from back in the days that I raised tortoises that the sex of a clutch of tortoises could be some what maniupulated by controlling the air temperative of the of the incubation chamber. Just a mere few degrees one way or the other can have an impact on the number of males or females hatched.
JHAP
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"My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives."
...Hedley Lamarr (that's Hedley not Hedy)
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Good memory JHAP, most reptiles are like that... Anything from fence lizards to box turtles to alligators!
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Yes temp and pressure have been used along with food laced hormones and other ways to make all one sex fish or to make them triploids and tetraploids.
Last edited by ewest; 05/01/09 09:12 PM.
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Yes temp and pressure have been used along with food laced hormones and other ways to make all one sex fish or to make them haploid or diploid.
Don't you mean haploid, or triploid? I thought the diploid state of genes was normal?
Last edited by Cecil Baird1; 05/01/09 08:41 PM.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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Trying to go to fast.  -  Neither I fixed it now. Triploids and tetraploids.
Last edited by ewest; 05/01/09 09:14 PM.
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See this is why science drives me crazy:
Triploid = (three sets; 3x) Makes sense tri as in tripod, triangle.
Tetraploid = (four sets; 4x) Tetra??? What? Why not quadraploid?
Pentaploid = (five sets; 5x) Got it. As in Pentagram (leave pentagrams alone, according to all of the movies I've watched messing with pentagrams can be dangerous stuff).
Hexaploid = (six sets; 6x) Sure as in hexagram.
Octaploid = (eight sets; 8x) Of course, behold the Octopus
Decaploid = (ten sets; 10x) Yep as in Decade.
Dodecaploid (twelve sets; 12x) WHAT? Why not Dozenaploid?
JHAP
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"My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives."
...Hedley Lamarr (that's Hedley not Hedy)
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Tetraploid = (four sets; 4x) Tetra??? What? Why not quadraploid
JHAP, everything cant be based on Espanol. Where's the Greek love?........Dont answer.
Last edited by burgermeister; 05/02/09 01:06 PM.
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JHAP, everything cant be based on Espanol. Where's the Greek love?........Dont answer.  Ok I'll restrain myself. Theo? Brettski?
JHAP
~~~~~~~~~~
"My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives."
...Hedley Lamarr (that's Hedley not Hedy)
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I have temporarily misplaced my 10 foot pole.
"Live like you'll die tomorrow, but manage your grass like you'll live forever." -S. M. Stirling ![[Linked Image from i.pinimg.com]](https://i.pinimg.com/736x/ed/b5/e7/edb5e7f935843b996cf52be593c9ebd2--smoothie-smooth-collie.jpg)
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