What color egg will my roosters chicks produce?

[Robind15]

Hey Y’all! I bought a gorgeous Brahmamerucana rooster. I’d like to know what color his chicks will lay or produce.
I’m not good with genetics so please help but first let me explain.

The person I bought him from said he will have a 50/50 chance of producing Green or blue eggs chicks.

His dad is 3/4 Brahma as told.
His mom looks like a Americana.
I know
Blue egger + brown egger = green egger

His sister are laying green eggs right now.
Does that mean he will produce green egger chicks?
Is he a Green egged rooster ?

I have a variety of breeds that lay all colors.
Who do I mate him with to create more blue and green eggs?

Please see pictures.

 

[LadiesAndJane]

Until you hatch out, raise and see what color eggs his pullet chicks lay, you will not know. Just because his sister is laying green, does not necessarily mean he inherited the same egg color genes.
I am sure others will chime in with more details.

 

[DarJones]

Best chance is that he has one copy of the blue egg (oocyanin) gene therefore 1/2 of his offspring will carry the gene and 1/2 will not. If you want more blue egg layers, mate him to a known blue/green egg laying hen.

 

[Poultrybonkers]

Since he would only already have one blue egg gene unless his parent was an easter egger not a true ameraucana which it sounds like you might get a green layer but most prolly will lay brown

 

[Justso]

Is the blue gene dominant, semi dominant or recessive?

 

[The Moonshiner]

Dominate over non blue (white)

 

[DarJones]

Blue is dominant over white. All eggshells start out white but change to blue when the oocyanin gene is present. Blue affects the eggshell all the way through. If the porphyrin biopath is enabled, then the egg gets a coating that can be various shades of tan to dark brown. When a blue egg gets a tan/brown coating, the resulting color can be various shades of green with olive green very common. There are several modifier genes that affect the final result.

 

[Robind15]

Best chance is that he has one copy of the blue egg (oocyanin) gene therefore 1/2 of his offspring will carry the gene and 1/2 will not. If you want more blue egg layers, mate him to a known blue/green egg laying hen.

If he has the gene and I mate him with blue/green egger hens this will better the offsprings chances of producing blue/green eggs. Is that correct?

And if he does not have the blue gene he is a green/brown egger. That I can mate with green eggers hens to produce more green chicks?

 

[DarJones]

Yes for the first, no for the second.

The blue gene is either present or absent. If present, the eggshell color will be blue. If absent, the eggshell will be white. Presume he has 1 copy of the blue egg gene. If so, his offspring have a 50% chance of getting it and will therefore lay eggs that are blue.

Green eggs are NOT another gene. They are just the blue egg gene producing blue eggs while the porphyrin biopath is busy producing a brown coating which gives the eggs a greenish cast. Turn off the porphyrin biopath and voila, the chicken lays blue eggs. Turn it back on and now you get some shade of tan over blue to olive green. I have a lot of tan over blue layers because my chickens carry a gene that inhibits porphyrin but does not entire stop it from being produced.

Mate your rooster to blue/green egg layers. The probability is from 75% to 100% of the offspring will carry the oocyanin gene. This is much better odds than 50% which is what you get mating your rooster to either white or brown egg layers.