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Cream Legbars - 3 pullets and a super pale cockerel? - Page 3

post #21 of 26

You do have a CCLB there, you won't be able to tell what sex until it gets some secondary sex characteristics as the white would hide the auto-sexing color distinction in the chicks, but as some of the previous posters noted, the color does occur. It is basically the same as the "isabella" or lavendar gene. Some natural or partridge patterend birds are heterozygous for this recessive gene, but as it is completely recessive, you don't see it (unlike the Black, blue, splash birds where the genes are co-dominant and heterozygous birds are blue). It is extremely rare in legbars as it will only occur if two heterozygous birds are mated and then in only about 25% of the offspring who inherit the gene from bot parent and are homozygous recessive. Because the resulting birds only carry this genotype, they will then breed true if bred to each other (like lavendar and isabella birds do). It is fairly well documented in Brown leghorns and partridge brahmas and crele orpingtons (very similar to what you would get in the legbar). See photos

 

post #22 of 26
Thread Starter 
Quote:
Originally Posted by WyandotteIndeed View Post

You do have a CCLB there, you won't be able to tell what sex until it gets some secondary sex characteristics as the white would hide the auto-sexing color distinction in the chicks, but as some of the previous posters noted, the color does occur. It is basically the same as the "isabella" or lavendar gene. Some natural or partridge patterend birds are heterozygous for this recessive gene, but as it is completely recessive, you don't see it (unlike the Black, blue, splash birds where the genes are co-dominant and heterozygous birds are blue). It is extremely rare in legbars as it will only occur if two heterozygous birds are mated and then in only about 25% of the offspring who inherit the gene from bot parent and are homozygous recessive. Because the resulting birds only carry this genotype, they will then breed true if bred to each other (like lavendar and isabella birds do). It is fairly well documented in Brown leghorns and partridge brahmas and crele orpingtons (very similar to what you would get in the legbar). See photos



That's very interesting, thank you. It's a really nice colour, I'm excited to see it developing. Is there any distinction in the pattern between the sexes?
post #23 of 26

Unfortunately, while technically the white spot is still there on the male chicks, you won't be able to see it any more because most of the other head feathers will also be white on both sexes, so you loose the ability to sex at hatch. Still might be worth it though. 

 

You could breed your light bird to a standard and all of the offspring would then be heterozygous, so then you breed the second generation back to each other and you should get 25% lights, which would then breed true if you breed them back to each other. Makes for a very tight gene pool, but if you start by hatching a large number and then never breed parents to children but only brothers to sisters, you should do just fine. Sounds like a fun project!

post #24 of 26
Thread Starter 
Well I probably don't have the room for a project like that, but it would be an interesting thing to do. I suppose at least the first few generations would be relatively small so I may be able to start in my current space.
post #25 of 26
He won't match the proposed SOP for Cream Legbars. So for the breed he is not breeding quality.

But, as mentioned he may work in a project.
post #26 of 26
Thread Starter 
I do not plan on showing any birds but having a breeding project to follow would be fun, I'm also not sure how closely the other features would follow the SOP.
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