Genetics Question:

[Jan336]

I have 37 eggs in the incubator. I have bred my silver gray Dorking to Rhode Island Red and Black Sex Link hens. Anyone tell me what I might hatch?

Are Dorking genes dominate?
What are the odds of hatching a 5 toed chick?
What genes (if any) are dominate?

 

[WhiteMountainsRanch]

Have you played around on the Chicken Calculator?

http://kippenjungle.nl/kruising.html

 

[Jan336]

Quote:
I have not the first clue on how to calculate that thing! LOL -->

 

[HaikuHeritageFarm]

I think the chicken calculator is just for color, haven't seen the feature for things like fifth toes and crest size and comb dominance, yet!

TO the OP, not sure. It seems like I recall reading the fifth toe thing is partially dominant, whatever that means. In silkie crosses, you will often see mis-matched numbers of toes on each foot, and a variety of arrangements among the same hatch/cross. Seems like a crap shoot, on that one!

IF your roo is rose combed, that gene is dominant.

 

[WhiteMountainsRanch]

LoL on the left side, press "show examples" and pick which rooster you have, then do the same thing on the right and then press "calculate" voila!

 

[sheila3935]

I had what was suppose to be a BCM/silkie mix. They were black and white very pretty with the silkie head but one had a fifth toe on one foot only.

 

[Illia]

Quote:
Actually, those traits ARE in the new chicken calculator.

Five Toes is a dominant trait. Often Silkie crosses don't pass it on to others because hatchery quality Silkies, which are pretty common, only have one five toes allele, thus passing it on to 50% of the offspring.

WhiteMountainsRanch - It isn't that simple. Because a bird may look like, say, a brown-red, does not mean it is. . .

Also, there are a lot of colors out there not on the "show examples" section.



Silver Dorking x Production Red = moderate sized, 5 toed birds that have coloration very similar to Easter Eggers. They'll be white in color (but the males will be gold and red, too) and have a lot of black pencilling on their bodies. Some will look quite a bit like Light Columbians in color.

Silver Dorking x Black Sex Link = moderate sized, 5 toed birds that are mostly black with bits of silver in the neck, possibly extending out to the rest of the body, too.

Your Silver Dorking may possibly also only pass his 5 toes on to 50/50 of the offspring, as he is hatchery based as well. Hatchery birds are never 100% true to type, including traits like five toes.

 

[Jan336]

Quote:
Actually, those traits ARE in the new chicken calculator.

Five Toes is a dominant trait. Often Silkie crosses don't pass it on to others because hatchery quality Silkies, which are pretty common, only have one five toes allele, thus passing it on to 50% of the offspring.

WhiteMountainsRanch - It isn't that simple. Because a bird may look like, say, a brown-red, does not mean it is. . .

Also, there are a lot of colors out there not on the "show examples" section.



Silver Dorking x Production Red = moderate sized, 5 toed birds that have coloration very similar to Easter Eggers. They'll be white in color (but the males will be gold and red, too) and have a lot of black pencilling on their bodies. Some will look quite a bit like Light Columbians in color.

Silver Dorking x Black Sex Link = moderate sized, 5 toed birds that are mostly black with bits of silver in the neck, possibly extending out to the rest of the body, too.

Your Silver Dorking may possibly also only pass his 5 toes on to 50/50 of the offspring, as he is hatchery based as well. Hatchery birds are never 100% true to type, including traits like five toes.

What do you mean when you say that my Dorking rooster is hatchery based?

 

[Illia]

I'm saying this based on probability, as most are, and as the breeds of your hens reflects on it. My most sincere apologies if he is not.

 

[Jan336]

Quote:
Do you base all your knowledge on probability and theoretical assumptions, or do you actually gather scientific facts and numbers? Im just curious because you have no experience with the Dorking breed. I do not even see a Dorking on your website. You sure know alot about the breed to not own one. Just saying.