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    2016 Non Int Red Ivory Cock

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    David McCool
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    2016 Non Int Red Ivory Cock

    Post  David McCool on Thu Sep 29 2016, 21:40



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    Red devil
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    Re: 2016 Non Int Red Ivory Cock

    Post  Red devil on Fri Sep 30 2016, 19:32

    Strong colour
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    footy4189

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    Re: 2016 Non Int Red Ivory Cock

    Post  footy4189 on Fri Sep 30 2016, 20:19

    Very nice

    Mark
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    David McCool
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    Re: 2016 Non Int Red Ivory Cock

    Post  David McCool on Fri Sep 30 2016, 21:01

    Red devil wrote:Strong colour

    It is hard to get the ivory colour on camera as it really is. But yes it a good strong colour... a bit more work on feather and i will be happy


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    David McCool
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    Re: 2016 Non Int Red Ivory Cock

    Post  David McCool on Fri Sep 30 2016, 21:01

    footy4189 wrote:Very nice  

    Mark
    Thanks Mark.


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    Deukalion

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    Re: 2016 Non Int Red Ivory Cock

    Post  Deukalion on Wed Nov 09 2016, 22:59

    Beautiful bird!
    I just read in a book that this mutation(ivory) should spread lipochrome on the wings.
    Is that true?Please correct me.
    Thanks.
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    GeoffW

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    Re: 2016 Non Int Red Ivory Cock

    Post  GeoffW on Thu Nov 10 2016, 07:16

    It is not clear what you mean by saying 'spread lipohrome in the wings'. What exactly do you mean ?
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    Deukalion

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    Re: 2016 Non Int Red Ivory Cock

    Post  Deukalion on Thu Nov 10 2016, 13:23

    Sorry!
    I read in this book:"fundamentals of color genetics in canaries",author:Octavio Perez-Beato
    that:
    "..the ivory factor acts on the lipochromes as a dilute gene,besides extending the pigment to wing and tail feathers."
    The author mention that many times.
    Your opinions?
    Thanks.
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    GeoffW

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    Re: 2016 Non Int Red Ivory Cock

    Post  GeoffW on Thu Nov 10 2016, 13:56

    Perez is incorrect. the lipochrome is not being diluted, the lipochrome stays the same. What is different is the structure of the feather so that light is refracted differently giving an optical illusion of dilute colouration. If colour fed in the nest you will see that the lipochrome already exists in the flight and tail feathers.
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    Deukalion

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    Re: 2016 Non Int Red Ivory Cock

    Post  Deukalion on Thu Nov 10 2016, 14:30

    Thank you for your reply!
    I understand that this book does not give a scientific explanation,so "dilution" is just a word to describe something,unluckily.
    In conclusion lipochrome should appear on wing and tail feathers on the contrary to other non-ivory canaries that the wing and tail feathers are not completely colored;(before their 1 year moult)
    And the ivory mutation is a different structure of the feather;(like blue-factor or structural coloration,but not the same)
    Do you have any link to read it;
    Thanks again!
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    GeoffW

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    Re: 2016 Non Int Red Ivory Cock

    Post  GeoffW on Thu Nov 10 2016, 16:55

    All red or red ivory ground birds will have coloured wings if they are fed a colouring agent in the nest. If exhibiting in continental europe it is mandatory to colour feed in the nest, unless you wish to exhibit birds in the white wing classes. Here you do not feed birds in the nest, and the wings need to be white not a cream colour.
    In the UK it is optional whether you colour feed in the nest or not. David clearly decided not to do so.
    The optical blue factor is not obtained from a different structure of the feather but by other causes.

    i am afraid I know of no links to assist you.
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    Deukalion

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    Re: 2016 Non Int Red Ivory Cock

    Post  Deukalion on Thu Nov 10 2016, 20:18

    Thank you GeoffW.
    I haven't found anybody to confirm Perez's argument.
    You are doing good job here,with beautiful birds!
    Many greetings from Greece.

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