The Official Forum of the Ameraucana Breeders Club > Breeding

Egg Color

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Jean:
Paul,

The brown egg is from a Delaware.  It\'s strictly for eating! :)

I think everyone is behind this year.  I know I am way way behind.  I just keep telling people give me a month or so and get back to me.....

Thanks for the input everyone.

Jean

Guest:
Is *deep* blue (such as that of 2 eggs on right) actually undesirable? If so, why? I had thought pale blue was the basic, and deep blue perhaps an even stronger (& therefore better) version of the desired gene. Obviously, I\'ve got some learning to do!
Laura

NGaAmeraucana:
I know this is an old post but I have an egg color question.

My pullets/now hens all lay gorgeous blue eggs.  They were mated to a nice roo who came out of a gorgeous blue egg.  The resulting pullet from that mating (gbe hen x roo from blue egg) is laying for all practical purposes.. a white barely tinted blue egg.   :(

1) Will that pullet\'s eggs darken?
2)  What cuased her to lay nearly white eggs when both of her parents lay beautiful blue or came from a beautiful blue egg?

3)How does the blue egg gene work?  
4)Is there a genetics chart anywhere?

Mike Gilbert:
You didn\'t say how long the pullet has been laying, so I\'ll guess at least a couple of weeks?  My opinions follow in the order the questions were asked.

1) no
2)The sire\'s father was not taken into account, he was probably hetero for the blue egg gene (O) and did not pass O onto his son, the father of the pullet in question.   You did the right thing, but unless you know the entire pedigree there are no guarantees.  
3)It is a single dominant gene.   That means it is expressed by one gene (O), but in order to breed true for blue egg, a chicken must inherit O from both parents, not just one.
4) Entire books have been written on poultry genetics.  What are you looking for?   I would recommend the poultry genetics website by Sellers for starters.  Here is the address:
http://sellers.kippenjungle.nl/page3.html

Just as an aside, the term roo is generally held in disdain by many experienced poultry folks.  The correct and therefore favored terminology is cock, cockerel, or rooster.  

NGaAmeraucana:
Sounds like simple genetics.  Is it this simple?  

OO hen = blue eggs
Oo hen = white eggs

is that correct?  Or are there alleles (sp?) involved?

I know the words, lol. Our boys are named
Roo1, Roo2, Roo3,etc...  It\'s habit regardless of age for the main boys. The boys being sold are listed with the correct words to classify age when being sold.  That\'s the only time I\'m anal about using the correct words..  Otherwise I\'m pretty laid back.  

   

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