Sex- linked Information

[MichelleMisfit]

I keep reading from people who breed Cuckoo Marans that they can be sexed by color fairly accurately in the first few days. (Males are more silver and have a more diffuse spot on top of head) But according to the info at the start of this thread it's not true. Is it possible that they are correct, just that it is not as accurate as a "sex link" ?



This chick hatched Wednesday from hatchery stock Cuckoo Marans Parents

Hi. I was hoping someone might be able to shed some knowledge on this, having just spent several hours reading through the 106 pages of this thread. I've got a number of questions.

Pretty straight forward, which I am sure people will be able to instantly say yes or no to, however I seem to not be able to find a definitive answer on the internet.
Is Light Sussex Cock over RIR Hen sex linked the same was as RIR cock over LS hen?

Another thing I was wondering, is whether using light sussex stars (hybrids) changes the sex link traits in any way or whether it makes no difference?
We are currently using a Buff Orpington/Brahma cock over light sussex hens for our sex linking which works absolutely fine, though I am looking at replacing the cock as he's a bit knackered.

The last thing that reading about the cuckoo marans made me wonder and figured I would ask was about my current chicks. We do incubation at schools and generally just use our sex linked eggs, however every now and again have to put in some other eggs due to not having enough or something going wrong. Now in the flock that we use for incubation we have

Cocks:
Buff Orpington/Brahma
Gold frizzle polish

Hens:
Light sussex
Buff Orpington
Gold Brahma
Araucana
Bluebell
Gold lace Polish

Now besides the standard sex links and one dark one (from the bluebell, I am assuming), we have also got a trio of dark, barred chicks. Can anyone shed some light on where the barring might have come from? I would be very grateful for any ideas anyone might have. Thanks!

 

[Ridgerunner]

What breeds have you crossed them with? What hen did you use with the Cream Legbar Rooster for the first cross? How was their daughter colored? Was she pure white? If not you should be able to see some barring in her feathers even if only lightly or in pattern feathers. That may mean the original Cream Legbar rooster was not pure for the barring gene. That’s the only explanation that makes sense to me based on information given.

Of less interest, but what rooster did you cross that hybrid pullet with to try to make a black sex link?

And to close it out, is that six week old solid black? Nicalandia is exactly right. At 6 weeks old you should be able to see barring if it is there if the feather coloring allows barring to show.

I know I’m repeating, but if the original Legbar rooster is pure for the barring gene, his daughter has to have the barring gene. If she has the barring gene, her sons have to have one copy. The only possibility I can see is that the original cream legbar rooster was not pure.

 

[Ridgerunner]

I don’t hatch barred chicks so I can’t give a good answer on the lighter down in barred chicks being male from experience. Down can be different from feathers. Someone, I believe SpoeckledHen, had a nice thread with photos on sexing Barred Rock chicks at hatch. She went by the size of the headspot, not the shade of the down. From her photos the size of the actual headspot wasn’t always really clear, but she said if you have some experience with it, you can do pretty well. I know, still not a definitive answer.

Is Light Sussex Cock over RIR Hen sex linked the same was as RIR cock over LS hen?

No. If you carefully read the first post in this thread, to make a red sex link the male has to be pure for gold and the female has to be silver.

Another thing I was wondering, is whether using light sussex stars (hybrids) changes the sex link traits in any way or whether it makes no difference?

From what I found, ”The Sussex Star is a cross between a Light Sussex and a Rhode Island Red. She is pure white with black feathers round her neck and in her tail.” That means the light Sussex was the daddy. Pullets get a silver from her daddy and nothing from her mommy. She can be used to make a red sex link. But the cockerels of that cross get a silver from the daddy and a gold from the mommy. Since he is not pure for gold, he cannot be used to make a red sex link.

I found this on a bluebelle “The bluebelle chicken is a cross between a Rhode Island Red and a Maran. As such, she lays large pale brown eggs, around 300 a year. She has a placid nature and beautiful colourings in shades of violet and grey.” I don’t know what Marans they used, but with that coloring, it is not a cuckoo. The photo makes me think Birchen is involved. I doubt the barring came from her. I don’t know what the British standards call for in an Araucana. From your list, that’s the only one that I can see that barring could possibly come from.

 

[MichelleMisfit]

Quote:
I thought this might be the case, but just couldn't quite work out why and it seemed strange that I wasn't able to find an answer on it, as it seemed such an obvious question. maybe to obvious, that's why no one's bothered to explain it haha. thanks for that!

Quote: that makes perfect sense, thank you!
Quote: sorry, I should have said that its a lavender araucana. Whenever I've tried to incubate her eggs, they haven't been fertile though that doesn't mean it couldn't have been some chance encounter, but I can't see it being her. The bluebell seems the most likely candidate, but including the other blue-ish chick that would mean she'd be responsible for almost 30% of the march chicks by herself (we only have the one bluebell) and it just seems a bit unlikely. equally I can't see any of the others making sense. It's not a huge deal, just somethings that puzzles me every morning when I feed the chicks.

 

[nicalandia]

Does Any of you Lot wish to Test my "Sex Before Hatch" Theory? its not a theory bubecause I have test it but so far I have yet to know of someone else that have done such test..


Silke Roo x White Leghorn Rooster will produce sexlinks, id+/Fm vs Id/Fm sexlinks, females will have black skin, males will have a clear yellow/white skin

I was able to sex the about a week before the hatch day because the females would look so black the light would not go thru as nice as the males do, so side by side you could tell the big difference, making them the first before hatch sexable sexlinked cross,...

so If any of you guys are about to do the same or similar cross, would you mind taking pics and posting your results?

 

[jerryse]

Does Any of you Lot wish to Test my "Sex Before Hatch" Theory? its not a theory bubecause I have test it but so far I have yet to know of someone else that have done such test..


Silke Roo x White Leghorn Rooster will produce sexlinks, id+/Fm vs Id/Fm sexlinks, females will have black skin, males will have a clear yellow/white skin

I was able to sex the about a week before the hatch day because the females would look so black the light would not go thru as nice as the males do, so side by side you could tell the big difference, making them the first before hatch sexable sexlinked cross,...

so If any of you guys are about to do the same or similar cross, would you mind taking pics and posting your results?

This is so cool. Gave you a ovation for that info.

 

[lonnyandrinda]

Does Any of you Lot wish to Test my "Sex Before Hatch" Theory? its not a theory bubecause I have test it but so far I have yet to know of someone else that have done such test..


Silke Roo x White Leghorn Rooster will produce sexlinks, id+/Fm vs Id/Fm sexlinks, females will have black skin, males will have a clear yellow/white skin

I was able to sex the about a week before the hatch day because the females would look so black the light would not go thru as nice as the males do, so side by side you could tell the big difference, making them the first before hatch sexable sexlinked cross,...

so If any of you guys are about to do the same or similar cross, would you mind taking pics and posting your results?

Please clarify- how do you cross a silkie roo with a white leghorn rooster? I've heard of immaculate conception but that is just ridiculous!

 

[nicalandia]

Quote:
Silkie Roo with White leghorn Hen...

 

[lonnyandrinda]

Quote:
LOL I know, just poking fun at ya! Hence the wink smiley!

 

[jerryse]

Quote:
I read that and did not catch the mistake . My mind just read it right I guess.