Colours From Breeding Question

[shweet]

I have 2 Grizzles that have bred 1 Grizzle and one Blue. Is it possible to breed a Blue from 2 grizzle parents or does this question the paternity of the cock ?

[greenbar]

we have a dark grizzle cock and a white grizzle hen.1st round white grizzle and a blue cheq, 2nd round dark grizzle and blue bar,

[billt]

I have 2 Grizzles that have bred 1 Grizzle and one Blue. Is it possible to breed a Blue from 2 grizzle parents or does this question the paternity of the cock ?

 

That's quite possible, have the same myself often

[shweet]

OK thanks

[Kennybhoy]

Paired cheq and blue together got two blue w/f wasn't expecting that myself but being a novice I'm learning to expect the unexpected.lol

[buster151]

From a 2grizzle pairing first round 2 grizzles 2nd 2 cheq pied (last years) this year off the same pair a white with a few black feathers in tail

Someone said before its something to do with only being once dilute whatever that means

 

This year from 2 cheqs pairing a blue with a white bib just couple feathers on chest

 

and from a grizzle and dk chq pied pairing a white with very very light grey flecks you have to look really hard to see them

[tommy2]

I have 2 Grizzles that have bred 1 Grizzle and one Blue. Is it possible to breed a Blue from 2 grizzle parents or does this question the paternity of the cock ?

 

Grizzle is not a colour mate,your better of breeding a grizzle with a blue or mealy to get a better strike rate than 2 grizzles paired together

[indigobob1]

Hello swheet,

 

The Punnett Square below illustrates how it is possible to breed a non-grizzle from two grizzle parents: G = grizzle and + = non-grizzle.

 

G//+ are grizzle, G//G is a mostly white grizzle and +//+ is a non-grizzle. The 'typical' grizzle colouration (i.e. heterozygous grizzle) is produced by one grizzle gene and one non-grizzle gene; "white" grizzles (i.e. homozygous grizzle) are produced by two grizzle genes.

 

Grizzle is a partial dominant (to wild type blue) gene and is not sex-linked. It is a colour modifier that can be combined with any of the other pigeon patterns and colours.

 

Unfortunately, I can't upload a Punnett Square so I'm only able to provide the symbols and I can't get them spaced as they should be!! Hopefully you get the idea.

The top line, G + is one parent, the first vertical line G + is the second parent the other four combo's with // are the predicted offspring genotype.

 

 

G +

 

G G//G G//+

 

+ G//+ +//+

[tommy2]

Hello swheet,

 

The Punnett Square below illustrates how it is possible to breed a non-grizzle from two grizzle parents: G = grizzle and + = non-grizzle.

 

G//+ are grizzle, G//G is a mostly white grizzle and +//+ is a non-grizzle. The 'typical' grizzle colouration (i.e. heterozygous grizzle) is produced by one grizzle gene and one non-grizzle gene; "white" grizzles (i.e. homozygous grizzle) are produced by two grizzle genes.

 

Grizzle is a partial dominant (to wild type blue) gene and is not sex-linked. It is a colour modifier that can be combined with any of the other pigeon patterns and colours.

 

Unfortunately, I can't upload a Punnett Square so I'm only able to provide the symbols and I can't get them spaced as they should be!! Hopefully you get the idea.

The top line, G + is one parent, the first vertical line G + is the second parent the other four combo's with // are the predicted offspring genotype.

 

 

G +

 

G G//G G//+

 

+ G//+ +//+

..Not totally correct sir.the formula although well acknowledged throughout pigeon literature,could only ever be proven by test matings over huge timescale using massive numbers.

[indigobob1]

tommy2

 

My reply was to answer the question:

 

"I have 2 Grizzles that have bred 1 Grizzle and one Blue. Is it possible to breed a Blue from 2 grizzle parents or does this question the paternity of the cock ?"

 

Hopefully, that is what I achieved.

 

The first recorded analysis of grizzle was in France by Loisel, 1905; subsequently, Bonhote and Smalley of England, 1911; Cole, U.S.A. 1914; Bol, Holland 1926; Steele and Metzelaar, U.S.A. also 1926.

 

Since then a good more has been learned but not reported formally. The reader is referred to Levi's book for pictures, and to the pigeon Genetics Newsletter for scraps of information, mostly from fanciers' experiments (WFH).

 

(Reference: Origins and Excursions in Pigeon Genetics, WF Hollander)