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fisherlady said:
Question... can any chick be feather sexed or only certain breeds?
What age gives best results on doing it?

Since ours stay with the broody till 6 or 8 weeks we rarely bother trying, but practice is always fun.
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Feather sexing is a sex-linked trait. There is a great thread that explains all the sex-linked genetics, but basically only certain carefully done hybrids can be reliably feather sexed, just as the silver/red (called red sexlinks) and the barred gene (black sexlinks and the autosexing breeds). Some people claim to be able to reliably feather sex some pure breeds. I wouldn't rule out the results of careful observation, but I wouldn't rely on it without a lot of experimentation.

I LOVE the whole topic of genetics, so many projects I'd like to try. If anyone wants to collaborate, I'd be happy to do the genetics research and help you decide on what to cross. Anyone up for some sex-linked, super blue egg layers? Or maybe rose-comb auto-sexing breeds (to get around their propensity for frostbite) ? I think I know how to do both of those, just don't have the space and time to do it all.
 
LizardCat said:
It's the oxygen levels that are the big issue with trout. Temperature too to an extent, but there's just not enough O2 in a still pond. Damming doesn't tend to work too well for salmonids; as you correctly state, the depth is useful in controlling temp. But by removing the flow of water, the tendancy is for less surface agitation which is the primary method of O2 exchange. Most stream trout will not take well to such conditions. Lake species will manage, but tend to be significantly slower growing.

Regarding farm ponds, stocking is the issue. Bass and Catfish tend to be apex predators; you'll need to provide suitable forage fish. (Shiners, dace, bluegills, etc.) Population management is key, unless you don't mind eating runts.

That's not such a bad thing though. Runts are still tasty. :)

Didn't know you were a fish guy Stake. Got any tanks at the moment? Fishkeeping has been a hobby of mine for many years!
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LC/ DH

Yeah, had common fish for a long time then African chilids(sp) for about 10yrs, then back to commons....shut it down two years ago to turn the aquarium into a hydroponic garden....did that for a year then got bored with it....

Have seen a number or articles on aquaculture....there are fish spheres in central America free floating in the Atlantic growing cobia, there was a dirtiest jobs episode on striped bass in the desert of AZ, they were using Tilapia to clean up the holding tanks from the stripers....and I got some soft shell crabs from a guy who was using old chicken coops on the eastern shore to grow out crabs...and there's studies being done down in Rehobeth Bay to raise oyster and clams....kinda interested in this stuff....
 
dheltzel said:
Feather sexing is a sex-linked trait. There is a great thread that explains all the sex-linked genetics, but basically only certain carefully done hybrids can be reliably feather sexed, just as the silver/red (called red sexlinks) and the barred gene (black sexlinks and the autosexing breeds). Some people claim to be able to reliably feather sex some pure breeds. I wouldn't rule out the results of careful observation, but I wouldn't rely on it without a lot of experimentation.

I LOVE the whole topic of genetics, so many projects I'd like to try. If anyone wants to collaborate, I'd be happy to do the genetics research and help you decide on what to cross. Anyone up for some sex-linked, super blue egg layers? Or maybe rose-comb auto-sexing breeds (to get around their propensity for frostbite) ? I think I know how to do both of those, just don't have the space and time to do it all.
Click to expand...
I mixed my houdan hens with a partridge silky roo and got this....
I cant wait too see them as adults...oh and I feather sexed them at a day old ...both girls
 
dheltzel said:
Feather sexing is a sex-linked trait. There is a great thread that explains all the sex-linked genetics, but basically only certain carefully done hybrids can be reliably feather sexed, just as the silver/red (called red sexlinks) and the barred gene (black sexlinks and the autosexing breeds). Some people claim to be able to reliably feather sex some pure breeds. I wouldn't rule out the results of careful observation, but I wouldn't rely on it without a lot of experimentation.

I LOVE the whole topic of genetics, so many projects I'd like to try. If anyone wants to collaborate, I'd be happy to do the genetics research and help you decide on what to cross. Anyone up for some sex-linked, super blue egg layers? Or maybe rose-comb auto-sexing breeds (to get around their propensity for frostbite) ? I think I know how to do both of those, just don't have the space and time to do it all.
Click to expand...

and frostbite was bad for out leghorn this year, lost more than half his waddlesbefore
after
 

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