Duccman's Lemon Roller Project

[Charduck]

Hello all. I'm trying to produce Lemon Rollers.
Step 1- I took a Blue bar cock roller that produces yellows and brown offspring and bred it with a Lemon hen which produced a romer Dun check.
Step 2- I then bred the romer Dun check son back to the Lemon mother which produced a Lemon hen.
Step 3- I bred the Dun romer to his offspring Lemon hen and produced a Lemon cock.
Step 4- I then bred the Lemon cock offspring to one of the original Blue bar rollers offspring which is a brown with brown bars.
They produced lemon babies.
The question is, what do I do next ? I want good rollers with the lemon color.

[AdamArcher]

Lemon is sex linked recessive so fairly easy to grade into your birds.

Lemon cock to normal hen - all hens will be lemon and all cocks will be carriers.

Lemon hen to normal cock - all cocks will be carriers.

You can fairly easily track who carries the gene as you mate them into your performance birds and produce quality yellow rollers over a few generations.

[Charduck]

So does this mean that the 2 babies in this pic are both hens ?

[AdamArcher]

If they're out of a lemon cock to a normal hen then yes they're hens.