Barred Rock question

[Stephanie739]

Will a BR hen ever produce female barred offspring if mated with a breed other than barred, i.e br hen mix with brahma roo? Barred pullets possible?

 

[Fred's Hens]

The female only has a single barring gene, as i understand it. The solid color gold/red cock bird used over a BR hen produces (black) sex links, where the female is not barred at all. The hatched males then get the single copy barring gene from their mother. Thus, a sex link cockerel looks a bit like the BR, but the gold leakage is telltale.

I would not expect nicely barred chicks from the match-up you propose. But then, genetics is not my speciality, at all.

 

[Stephanie739]

Thanks! I am just trying to figure out the sex of some of my hatchlings. I have a couple of babies that I am pretty sure came from my barred rock hen and these do not have the white spots on their heads as their (presumably) rooster brothers do. I am not certain which roosters fertilized all the BR eggs. I can with pretty good certainty distinguish the black stars - one roo, and one pullet. I have 3 others that will likely be barred (white spots on the heads) so I am pretty certain those are males (rooster dad could be the orpington since there isn't any reddish tint as the black stars) These other chicks in question were probably fathered by either a cochin or a brahma so I am wondering if the barring genetics work the same. I did recently (and happily) learn that my blue orpington roo will produce the same sex linking factor as my RIR, so I just wondered if this works with other breeds as well (specifically cochin or brahma)