Isabel Ameraucana x ISA Brown Cross w/ Chick Colors

[Wiljam09]

I have an Isabel Ameraucana Roo over two ISA Brown hens. I was expecting half black and half white offspring based upon searching this topic. This was based off a 2021 post I referenced finding a lavender AM over ISA brown hen.

Does the wheaten affect this? All of my chicks have came out half yellowish in color and the other half redish yellow with darker faint striping. I’m wondering if they are sexlinked bc of the wheaten?

My goal was to create a prolific olive egger, my isa from Hoover lay dark brown eggs almost daily and the AM roo was from a breeder.

Roo and Hen pic below when they were alittle younger. Will take chick pics later, they have been hatching today.

 

[MysteryChicken]

I have an Isabel Ameraucana Roo over two ISA Brown hens. I was expecting half black and half white offspring based upon searching this topic. This was based off a 2021 post I referenced finding a lavender AM over ISA brown hen.

Does the wheaten affect this? All of my chicks have came out half yellowish in color and the other half redish yellow with darker faint striping. I’m wondering if they are sexlinked bc of the wheaten?

My goal was to create a prolific olive egger, my isa from Hoover lay dark brown eggs almost daily and the AM roo was from a breeder.

Roo and Hen pic below when they were alittle younger. Will take chick pics later, they have been hatching today.

Pictures of the offspring?

Wheaten isn't Sexlinking.

 

[MysteryChicken]

The yellow chicks are probably your whites.

Isa Browns aren't just Wheaten, but also Red Columbian with Dominant White.

 

[Wiljam09]

Pictures of the offspring?

Wheaten isn't Sexlinking.

Here are some pics, there are a couple close ups of the two colors side by side.

The black chicks are BCM or olive egger crosses. They all hatched first and removed them before the ISA eggs hatched. So only the light yellow next to the striped or marked chicks. No blacks hatched from ISA crossed eggs.

 

[MysteryChicken]

Here are some pics, there are a couple close ups of the two colors side by side.

The black chicks are BCM or olive egger crosses. They all hatched first and removed them before the ISA eggs hatched. So only the light yellow next to the striped or marked chicks. No blacks hatched from ISA crossed eggs.

The striped one's are Wheaten/Duckwing Splits.
Isabel if I'm remembering correctly is Lavender Duckwing, so the chicks he father's will either be Duckwing, Duckwing Wheaten Splits, or these with the Columbian gene when bred to those hens.

Just to add that Duckwing can also act as a recessive depending on what other genes are present. It's an intermediate gene, so it can be both a dominant, & a recessive.

None of the offspring would be solid black.

 

[Wiljam09]

The striped one's are Wheaten/Duckwing Splits.
Isabel if I'm remembering correctly is Lavender Duckwing, so the chicks he father's will either be Duckwing, Duckwing Wheaten Splits, or these with the Columbian gene when bred to those hens.

Just to add that Duckwing can also act as a recessive depending on what other genes are present. It's an intermediate gene, so it can be both a dominant, & a recessive.

None of the offspring would be solid black.

Interesting, thank you for the quick response! I’ll have to read up on that, you wouldn’t happen to have a guess of what they could look like? I’m actually happy, they will be a different color other than black with all the marans crosses most of the chicks we currently have are black.

2nd question:
Are these chicks and all the ones this Roo fathered split to wheaten and lavender correct?

So if you crossed again that would make Isabel? I don’t plan on breeding this roo to its offspring but I do also have a Isabel AM hen if I saved a roo from this batch I could cross with her and make Isabel “high” production Easter eggers?

I just mean high production bc of the better laying genetics contained within ISA lines

 

[Wiljam09]

Here are chick colors at about 6 weeks, looks like makes combs are turning slightly red.

Was wondering if the slate shanks are female? This observation seems to hold true with the leghorn crosses. Wondered if this would be the same for this cross?

The yellow/white chicks turned out to be wheaten? Let me know what you think.

Edit: the white chick with black flecks is leghorn cross and black chicks are marans crosses.

 

[Wiljam09]

More pics what I suspect to be a male and female. The two light wheaten chicks seem up both be female and legs are slightly more gray than suspected males but not as gray other suspected females.

 

[paintedChix]

Coffee @ computer emoji...

Do you have updated pics? Just curious!!

I didn't have any hybrid red hens when I had a Self Blue roo. I have no idea exactly how the genetics work (will go back a post or two to read again)...

Never heard you could sex a bird by the color of the shanks/toes before. Have you found it actually "true" in this case?

 

[pipdzipdnreadytogo]

Was wondering if the slate shanks are female? This observation seems to hold true with the leghorn crosses. Wondered if this would be the same for this cross?

The gene that causes shanks clear of slate color is sexlinked. Crossing a slate-shanked male to a 'clear'-shanked female should produce 'clear'-shanked male offspring and slate-shanked female offspring. The caveat to that is that this is not always very apparent pending other genes that can impact skin color.

Dominant white is one of those genes. Both your ISA browns and your White Leghorns should have dominant white. In your next post with the lighter wheaten chicks, they look to have inherited that dominant white gene, causing them to be that lighter wheaten color. Dominant white is good at blocking out black pigment in feathering, but does not impact the red/gold pigment much at all. This is why ISA browns, despite having the gene, are primarily red anyway. Dominant white also tends to wash out skin pigments. That is why the lighter wheaten chicks' slate shanks look a lot more washed out. Those chicks should be females.


I've only just noticed this post is from October and the OP hasn't been seen since early December, but heck, I typed all this out and it might help someone, so here you go.