Can't tell the chicks apart

[RAREROO]

Rose combs are dominant so both the pure Doms and the Dom crosses would have rose combs.

 

[hoppy]

I was thinking barred was a sex linked gene so with dad being barred, wouldn't his mixed daughters be barred and the mixed males solids? of course 100% doms would all be barred.
editted for spelling

 

[RAREROO]

Quote:
Nooo. Barring in istself ( like barred to barred) is a sexlinked gene, hens can only carry one copy and males can either carry one or two copies and the two copy males are lighter than one copy birds so that makes them eaiser to sex but its different than what you are thinking.

But to make the color sexlinked offspring by crossing like you are saying, it only works when the hens are barred. Non barred roo on barred hens gives barred males and non barred females. Since the barred hens only have one copy they can only pass the one copy to thier sons and so that gives roos that only have one cope and are het barred and would be darker colored like the barred hens, and since the female offspring didnt get a copy, they stay non barred.

But when the father is barred ( and assuming he is pure Dom he should be homo barred with two copies) then breeding him to a non barred hen, all of the offspring will be barred. In a case where the roo only had one copy and was het barred, if he were bred to a non barred hen, then only half of the offspring would be barred but it would be in both sexes.

 

[hoppy]

ok, I was close just not close enough, thanks clint.

 

[HBuehler]

Quote:
Should be but not always..even my BLRW-top breeder stock will hatch with straight combs...from both rose comb parents.Believe that is why I said some may but it wouldn't mean all rose combs would be the pure ones.

 

[RAREROO]

Quote:
Should be but not always..even my BLRW-top breeder stock will hatch with straight combs...from both rose comb parents.Believe that is why I said some may but it wouldn't mean all rose combs would be the pure ones.

Yeah thats true, like you said even in pure Rose X Rose lines you still get a Single comb to pop up every now and then, But for the most part the Rose is Dominant and like you said, " Should" would be more appropriate. The should all have rose combs but it would be possible to get a few singles.