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  1. Krys109uk

    Breeding Pen and Genetics Question?

    From the first cross of dark cuckoo marans male on copper black marans female, the offspring, presuming they are carrying the expected genes, will all have a dark cuckoo phenotype.
  2. Krys109uk

    Breeding Pen and Genetics Question?

    If it's a dark cuckoo male over the black copper female you will produce cuckoo and golden cuckoo. Golden cuckoo is a black copper with the barring gene. Essentially a barred brown red. Not from a first cross.... But using this as a first cross it can be a start to getting black, (dark...
  3. Krys109uk

    Breeding Pen and Genetics Question?

    Mixing colours means they wouldn't breed true which causes problems for other people, if they are buying to breed, & it thus isn't fair. With chickens, when someone buys a bird intending to breed, it is reasonable for them to expect the bird to be what the vendor says it is. It is not reasonable...
  4. Krys109uk

    Breeding Pen and Genetics Question?

    People like to wait a while to be sure that the desired male is indeed the father of the chicks. And that's the safe way. However research has shown that eggs are fertilised by the sperm from the most recent mating. Thus theoretically the offspring ought to be from the desired male from when he...
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