Mottled Orpington Genetics

Discussion in 'Chicken Breeders & Hatcheries' started by tazcat70, Jan 22, 2008.

  1. tazcat70

    tazcat70 I must be crazy!

    Julie,

    I have been studying, and just figuring the Black gene and Mottled gene I have some information. Now like I said this is just those 2 genes and others may play a roll in this. Please anyone correct me if I am wrong/off or just totally lost.

    This is based on Roo and Hen both being Homozygous (both of their genes) for black. With no blue genes

    Mottled Roo + Black Hen

    50% will be homozygous for black and heterozygous (one gene) for mottled. (E/E Mo+/mo) (black chicks with mottle gene)

    50% will be homozygous for black and Homozygous for non-mottled. (E/E Mo+/Mo+) (black chicks with no mottle gene)

    They will be solid black chicks. These are the eggs that you are shipping out.

    If WE (the recipients of the eggs) then breed brothers to sisters then we have the possibility of this. I have just figured on the chicks that have the mottled gene.

    Black Roo + Black Hen (their genetics are E/E Mo+/mo)

    Then the eggs will be...

    25% will be homozygous for black and homozygous for mottled. (E/E mo/mo) (mottled chicks)

    50% will be homozygous for black and heterozygous (one gene) for mottled. (E/E Mo+/mo) (black chicks with mottle gene)

    25% will be homozygous for black and homozygous for non-mottled. (E/E Mo+/Mo+) (black chicks with no mottle gene)

    At this point you could use all mottled chicks in your program or continue to go back to black.

    Clear as mud? As for white orps it muddies the waters.

    Since you have mother and son, then you should get 100% mottled chicks from that mating.

    Thanks!
     

BackYard Chickens is proudly sponsored by