jenniferlamar70
Songster
Either way they wouldn't be sex linked... the hen only has to be barred and rooster needs to be solid... or gold rooster over silver hens *I think*...
No, it only works one way...
If hens are barred then they could be sex linked... if the rooster is barred then he passes the barring to ALL his offspring indiscriminately... only the hens will withhold barring from her daughters...
Yes this is what I've been reading up on as well. I have a chart somewhere bit I'm by no means an expert yet lol
This happens because the barring gene is sex linked. Chickens have different sex chromosomes than we do - while for humans females are XX and males are XY, in chickens (and birds in general) females are ZW and males are ZZ. The barring gene is carried on the Z chromosome - this is why males can carry two copies of barring and females only one, and it's also why sex linking works. So a single barred male carries barring on only one of his Z chromosomes. Depending on which Z chromosome gets passed to the female, the female will either be barred (if she gets the chromosome that the barred gene is on) or not (if she gets the one that doesn't carry a barred gene). If however a male is double barred, all his daughters have to be barred. So, you can get solid females out of a barred male, but only if the male is single barred. This is a bit of a simplification but I hope it makes sense.
If you want to know why sex linking works, it's because a female can only ever inherit barring from her father, since it's the ovum that determines the gender of the chick and not the sperm as it is in humans, meaning a hen never passes a Z chromosome to her daughters, she only passes the W. And since barring is only carried on the Z, she can't pass it to her daughters, but she always passes it to her sons.
And there's my random genetics lecture![]()
You lost me at this happens lol.. joking sort of lol. I get the gist of it but I always get lost when they start naming chromosomes. I've heard the sex is determined by the hen. I'm wanting to learn more about how to het females. I just know there has to be a way to do this geneticallyeven if I don't know it yet lol. Also my cemani are growing and I noticed something strange. 2 of themy have a comb that has like 6 teeth while the 1 only has 3. Does this mean anything or is it just random? Their combs shouldn't look different should they?
You guys lost me with all the sex link lingo!All I know is that silkies are really hard to sex!!
Remember the woman from Alaske that I told you guys about that bought my eggs....The one that was planning on NOT turning them at all and when I suggested that she not do that, I never heard back from her? Well I heard from her today. She actually bought more eggs from me because the first batch developed but not one egg hatched!! So no experimentation needed. Everyone was right, it was a disaster. She wants more eggs so she can "change her method" and hopefully get some chicks. I didn't say anything like I was thinking ("I told you so"), I just said I was sorry she didn't get any chicks and I sent more eggs. I really hope by "changing her methods" she means turning them!
I know how that is!! I had a chick with a broody that never shut up. I mean it cried it's head off 24/7! I think some chicks are just a lot louder then most!
Yes still guessing on my silkies. I'm stumped. The suspense is killing me lol
All this talk of barring reminds me I am going to have to cross my Lavender Cuckoo Orpingtons out to solid Lavenders as the best quality birds I can find are solid Lavender. Then I will have to keep track of whether my boys are single or double barred in every generation. What a headache.
I have chocolate and chocolate barred in my incubator now. Next to none are developing though. I'm super bummed because they are the ones with the fluffy bums lol