Platnium and Fawn, how is it made?

[MysteryChicken]

The German genetic calculator says Splash over Mauve gets Platnium....just got me muddy blue chicks, I'm an artist so they actually came out the color I expected. Now as far as Fawn goes it says Buff X Mauve, Blue X Mauve, and Black X Mauve all create Fawn offspring, which makes absolutely no sense to me whatsoever.

I don't get the same results.

 

[Shewstock]

I have it labeled.

I've read articles, threads, & I've also use the genetics calculator.

Ahhh. OK. I better take it a day at a time. Now is not the time to go from addition and multiplication to Algebra and geometry! I'll probably be asking questions on the subject a bit later. Quite a bit later. Thank you!

 

[MysteryChicken]

Ahhh. OK. I better take it a day at a time. Now is not the time to go from addition and multiplication to Algebra and geometry! I'll probably be asking questions on the subject a bit later. Quite a bit later. Thank you!

Okay, you're welcome.

 

[pipdzipdnreadytogo]

I confused myself on the Red Fawn.

But it is Dun, plus BB Red.

Fawn is Dun plus Silver.

I've never heard of Fawn being reliant on silver being present. Do you have a source for that info? Everything I'm finding is indicating that Fawn is just the common name for dun.

These are my Mauve girls, you can def see they have chocolate in them.

Beautiful birds! Just as a means of helping you understand the differences between them, Fawn, and Platinum, do you know the genetics for the Mauve coloration? That they are solid Black (two copies extended black, E/E), plus Blue (one copy of the blue gene, Bl/bl+) and Chocolate (two copies of the chocolate gene in males, choc/choc, but one copy in females, choc/-, because it is a sexlinked recessive gene)? Platinum is a similar variety, but based on dun instead of Chocolate, so you would have a Black bird as the base with Blue and dun (I^d/i+). For 'just' Fawn, take the Blue out of the equation of the Platinum bird, leaving a Black base plus dun (and... maybe silver as well, I guess?).

It's kind of hard to be any clearer than that. I can try to explain a bit, though, to maybe help you understand a little bit about what all those symbols mean. When you see an 'equation' like what the other user posted, or letters like what I have in the above paragraph, what you're looking at is basically a code to explain the genes. These genes come in pairs, one from the bird's father and one from their mother. Capital letters mean that gene is dominant (for example, E/E in my above paragraph), while lower case is recessive (as in choc/choc). Any time you see a plus sign, that means that the gene it's following is wildtype, or that that's the gene that occurs normally in the ancestral wild population (like Bl/bl+, where Bl is the Blue gene and bl+ is the wildtype of not being Blue). If there are no differences from the wildtype in a pairing of genes, it's generally not mentioned because it's understood to be the same as wildtype. For example, I wouldn't mention that your birds are not Lavender or split (as far as I'm aware), and therefore are Lav+/Lav+, because that is understood to be the case. Lastly, if a gene is sexlinked, then the males may have two copies of it (again, as in choc/choc), but females will only ever be able to carry a single copy (as indicated by the dash in choc/-).

It gets a bit more complicated when you have many different alleles of the same gene. That's where you may see a superscripted letter, or one with a ^ and a letter, as in the dun gene, I^d. All that means is that there are several different things that can fit in that 'slot,' dun being one of them, but you CAN'T have both I^d/i+ AND I^s/I^s in the same bird, as an example, because there's only enough room for two alleles in that slot (so either I^d/i+ or I^s/I^s, or some other combination of two).

Sorry, I hope that wasn't even more confusing! I'm never sure if I'm being too wordy or as clear as mud when I explain things like this. As for the confusion with the calculator, I've played around with it, but not as much as others, so I don't think I can explain the discrepancies between what it says and what should happen.

 

[kwarren6271]

I've never heard of Fawn being reliant on silver being present. Do you have a source for that info? Everything I'm finding is indicating that Fawn is just the common name for dun.




Beautiful birds! Just as a means of helping you understand the differences between them, Fawn, and Platinum, do you know the genetics for the Mauve coloration? That they are solid Black (two copies extended black, E/E), plus Blue (one copy of the blue gene, Bl/bl+) and Chocolate (two copies of the chocolate gene in males, choc/choc, but one copy in females, choc/-, because it is a sexlinked recessive gene)? Platinum is a similar variety, but based on dun instead of Chocolate, so you would have a Black bird as the base with Blue and dun (I^d/i+). For 'just' Fawn, take the Blue out of the equation of the Platinum bird, leaving a Black base plus dun (and... maybe silver as well, I guess?).

It's kind of hard to be any clearer than that. I can try to explain a bit, though, to maybe help you understand a little bit about what all those symbols mean. When you see an 'equation' like what the other user posted, or letters like what I have in the above paragraph, what you're looking at is basically a code to explain the genes. These genes come in pairs, one from the bird's father and one from their mother. Capital letters mean that gene is dominant (for example, E/E in my above paragraph), while lower case is recessive (as in choc/choc). Any time you see a plus sign, that means that the gene it's following is wildtype, or that that's the gene that occurs normally in the ancestral wild population (like Bl/bl+, where Bl is the Blue gene and bl+ is the wildtype of not being Blue). If there are no differences from the wildtype in a pairing of genes, it's generally not mentioned because it's understood to be the same as wildtype. For example, I wouldn't mention that your birds are not Lavender or split (as far as I'm aware), and therefore are Lav+/Lav+, because that is understood to be the case. Lastly, if a gene is sexlinked, then the males may have two copies of it (again, as in choc/choc), but females will only ever be able to carry a single copy (as indicated by the dash in choc/-).

It gets a bit more complicated when you have many different alleles of the same gene. That's where you may see a superscripted letter, or one with a ^ and a letter, as in the dun gene, I^d. All that means is that there are several different things that can fit in that 'slot,' dun being one of them, but you CAN'T have both I^d/i+ AND I^s/I^s in the same bird, as an example, because there's only enough room for two alleles in that slot (so either I^d/i+ or I^s/I^s, or some other combination of two).

Sorry, I hope that wasn't even more confusing! I'm never sure if I'm being too wordy or as clear as mud when I explain things like this. As for the confusion with the calculator, I've played around with it, but not as much as others, so I don't think I can explain the discrepancies between what it says and what should happen.

That helped quite a bit, to make the Mauve girls the parent flock is Choc X Splash resulting in offspring that is Blue split to Choc males and Mauve girls

 

[kwarren6271]

They’re so pretty! Buff Orpington or Cochin?

They're Mauve English Orpingtons, these are Buff

 

[pipdzipdnreadytogo]

That helped quite a bit, to make the Mauve girls the parent flock is Choc X Splash resulting in offspring that is Blue split to Choc males and Mauve girls

That sounds correct, with one further note that the parent flock would have to be a Chocolate male over Splash females; the other way around would only produce Blues with all the males split to Chocolate.

 

[kwarren6271]

That sounds correct, with one further note that the parent flock would have to be a Chocolate male over Splash females; the other way around would only produce Blues with all the males split to Chocolate.

They are but actually I have another flock that is reversed, Splash over Chocolate, I get Mauve in both sexes, blue female, and blue split to chocolate males

 

[pipdzipdnreadytogo]

They are but actually I have another flock that is reversed, Splash over Chocolate, I get Mauve in both sexes, blue female, and blue split to chocolate males

Your Splash is split to Chocolate, too, then! Otherwise, you'd only get Blue females and Blue split to Chocolate males.

 

[kwarren6271]

Your Splash is split to Chocolate, too, then! Otherwise, you'd only get Blue females and Blue split to Chocolate males.

I'm not surprised, seems a lot of the breeds I get from CRC end up a genetic nightmare