Genetics Gurus Please Help! Working Towards True Breeding Olive Eggers

[Starbawk]

That certainly makes a strong case for pea comb.

 

[MysteryChicken]

Thats right, males with pea comb have about a 94-96% chance of inheriting the O mutation(Oocyan blue eggshell) if you cross P/p+ females(BC1) with their bothers which are also P/p+ you will end up with 50% P/p+(kind of floppy pea comb), 25% p+/p+(single comb) and 25% P/P(very well formed small pea comb) those birds(males and females) have a 94-96% chance of being both O/O which will enhance the color

Will this work for walnut too? My breed is gonna have walnut comb, instead of single, or pea.

 

[nicalandia]

That certainly makes a strong case for pea comb.

Yes, very strong point

 

[nicalandia]

Will this work for walnut too? My breed is gonna have walnut comb, instead of single, or pea.

Walnut is more difficult since P/p+ R/r+ have a very tight comb shape

 

[MysteryChicken]

Walnut is more difficult since P/p+ R/r+ have a very tight comb shape

There's also P/P, R/R.

So, it would be more difficult to have green laying birds with walnut?

 

[nicalandia]

There's also P/P, R/R.

So, it would be more difficult to have green laying birds with walnut?

Yes, more difficult but not impossible

 

[Auntiejessi3]

I loved reading through this! Very educational!

 

[Starbawk]

Ok one more question that @nicalandia may know the answer to.

If I had an olive/green laying O/o hen (or more) and an olive/green laying O/O hen (or more) do you think it would be relatively easy to tell the difference due to the color of their eggs? Would the O/O hen have a much more vibrant green due to the double blue compared to the single blue gene? In other words, could I reasonably be able to confirm the homozygous blue olive eggers from the heterozygous blue olive eggers based on egg color alone?

 

[nicalandia]

In other words, could I reasonably be able to confirm the homozygous blue olive eggers from the heterozygous blue olive eggers based on egg color alone?

Yes and by Pea comb shape with( high probability )

Heterozygous Pea comb P/p+

 

[Starbawk]

Yes that part I understood. It's hard to find pea comb true blue layers around here (ameraucana, etc) so I was wondering about egg color alone but the sheer insane amount of time and birds it would take to test breed to find the O/O is staggaring and I've quickly come to realize finding ameraucanas would be easier.