What will the chick be?

[The Moonshiner]

Thank you, that's good to know! So, do you think they would still be nicley spotted from the Welsummer? Or would that be too much Black Copper Maran in the blood line?

It's hard to say. I noticed when I crossed Welsummers the spots on the eggs seem to be lost fairly easily.
I wasn't trying to maintain them though.
So your original hen was a Welsummer and assume she laid nice spotted eggs.
That 1st cross produced a hen (?) That you now want to cross to a BCM? Did that hen lay speckled eggs? If so then you still have those genes so odds are they will get passed to some offspring but maybe not all.
Best plan would be only working with females since you can see their eggs and only work with hatching from speckled eggs.
I think with the offspring though it's gonna be a wait and see what they lay.
3/4 Marans will be getting you away from the eggs you want but not impossibly out of the question.

 

[Lets Get Chicken With It]

It would still be half Welsummer regardless. Equal that and Marans. The offspring would be mostly black with some color in saddle/hackles like a Marans since the ER locus (birchen) is dominant over e+ (wild type) of Welsummers

Thank you for that information!
It couldn't be half and half, though. If the chicken itself is a mix of two equals, then crosses back with one of its originals, it's offspring is then 2/3rds Black Copper Maran, and 1/3 Welsummer.
I've done more reading on this apart from this site and I'm learning that what I'm talking about is considered BackCrossingx1.
Which means it would indeed strengthen the Black Copper Maran gene.

 

[Lets Get Chicken With It]

It's hard to say. I noticed when I crossed Welsummers the spots on the eggs seem to be lost fairly easily.
I wasn't trying to maintain them though.
So your original hen was a Welsummer and assume she laid nice spotted eggs.
That 1st cross produced a hen (?) That you now want to cross to a BCM? Did that hen lay speckled eggs? If so then you still have those genes so odds are they will get passed to some offspring but maybe not all.
Best plan would be only working with females since you can see their eggs and only work with hatching from speckled eggs.
I think with the offspring though it's gonna be a wait and see what they lay.
3/4 Marans will be getting you away from the eggs you want but not impossibly out of the question.

Thank you for your response!
I've done more reading on this and I've learned what I'm talking about is considered Back Crossing x1, which will strengthen the Black Copper Maran gene.
I haven't gotten this chick yet, I wanted to make a post and get more information on its potential outcome before I got it! I have a Black Copper Maran rooster, so that's why I was curious about it's offspring.
I'm thinking I might get this chick after all, because it's possible to have a super dark, spotted egg! Ah, it's worth the try to experiment!

 

[NatJ]

It couldn't be half and half, though. If the chicken itself is a mix of two equals, then crosses back with one of its originals, it's offspring is then 2/3rds Black Copper Maran, and 1/3 Welsummer.

Actually no.

If you cross Black Copper Marans with Welsummer, that bird is half of each breed.

If you cross that mixed bird back to Black Copper Marans, the offspring are 3/4 BCM and 1/4 Welsummer. That is because they are half Black Copper Marans, and half (half Marans and half Welsummer). So half of a half-Marans is a quarter Marans, and half of a half-Welsummer is a quarter Welsummer.

I've done more reading on this apart from this site and I'm learning that what I'm talking about is considered BackCrossingx1.

Which means it would indeed strengthen the Black Copper Maran gene.

Yes and mostly yes.

Specifically, each backcross chick will have some genes exactly the same as Black Copper Marans and some other genes exactly the same as the mixed parent (half Welsummer and half Black Copper Marans.) Different chicks will have different combinations of which genes match the pure Marans and which genes don't.

If you keep backcrossing to Marans, each generation will get more and more similar to actual Marans, because chicks will have more Marans genes and fewer genes that trace back to the Welsummer.

 

[Lets Get Chicken With It]

Actually no.

If you cross Black Copper Marans with Welsummer, that bird is half of each breed.

If you cross that mixed bird back to Black Copper Marans, the offspring are 3/4 BCM 1/4 Welsunmer.

Did you read my initial question, where I stated the chick IS a mix.

So, yes, as I later stated, after more research, it's OFFSPRING would indeed be 2/3rd Maran and 1/3rd Welsummer.

No one argued what you just said, it's actually what I already said.

Thanks for your input, though.

 

[The Moonshiner]

If you cross that mixed bird back to Black Copper Marans, the offspring are 3/4 BCM and 1/4 Welsummer. That is because they are half Black Copper Marans, and half (half Marans and half Welsummer). So half of a half-Marans is a quarter Marans, and half of a half-Welsummer is a quarter Welsummer.

 

[NatJ]

Did you read my initial question, where I stated the chick IS a mix.

So, yes, as I later stated, after more research, it's OFFSPRING would indeed be 2/3rd Maran and 1/3rd Welsummer.

No one argued what you just said, it's actually what I already said.

Thanks for your input, though.

No, I am not saying the same thing.
I am saying you are using the wrong fractions.

When you cross the mix with a purebred, the chicks never have thirds of anything.

Crossing breeds and backcrossing, you can get halves, quarters, eighths, sixteenths.

 

[Slothinc]

Did you read my initial question, where I stated the chick IS a mix.

So, yes, as I later stated, after more research, it's OFFSPRING would indeed be 2/3rd Maran and 1/3rd Welsummer.

No one argued what you just said, it's actually what I already said.

Thanks for your input, though.

Listen to @NatJ, she knows what she’s talking about. It would not be 2/3 maran 1/3 welsummer. Also @nuthatched was not just being sarcastic, but was simply answering the original question that you asked in the title of this post. If you come asking for advice and then don’t take it from the experts here, then why ask? Not trying to be rude, just trying to understand why you’re so defensive when people are taking their time to answer your questions, or bump the thread so that more people can answer it for you.