Bielefelder Cross Question - Autsexing gene with barred hens?

Discussion in 'General breed discussions & FAQ' started by plumcreek, Sep 9, 2013.

  1. plumcreek

    plumcreek Chillin' With My Peeps

    154
    5
    101
    Aug 2, 2010
    Does anyone know if a Bielefelder rooster crossed with other barred breeds would continue to produce autosexing chicks? I have too many roosters and want to know if they could be useful to people with barred hens.
     
  2. plumcreek

    plumcreek Chillin' With My Peeps

    154
    5
    101
    Aug 2, 2010
    Anybody?
     
  3. donrae

    donrae Hopelessly Addicted Premium Member

    31,451
    3,546
    538
    Jun 18, 2010
    Southern Oregon
    I don't know if they'd work or not, but whereabouts are you?
     
  4. plumcreek

    plumcreek Chillin' With My Peeps

    154
    5
    101
    Aug 2, 2010
    We are located in Austin Texas. Guess I may have to try it out and see what happens.
     
  5. plumcreek

    plumcreek Chillin' With My Peeps

    154
    5
    101
    Aug 2, 2010
    Anyone tried this yet?
     
  6. dheltzel

    dheltzel Overrun With Chickens Premium Member

    4,189
    743
    261
    Nov 30, 2013
    Pottstown, PA
    Autosexing involves the barred gene and the wild-type gene, so it depends what the hen is. It might take several generations of back crossing to get the autosexing back. The only cross that will reliably give autsexing chicks in the first generation is a hen from a breed that is also autosexing, like a rhodebar or legbar.

    The genes carried by your roos are not especially rare, a barred rock rooster is just as useful for creating an autosexing line.
     
  7. texas75563

    texas75563 Chillin' With My Peeps

    434
    24
    113
    Jan 24, 2012
    Linden, Texas
    I know nothing about genetics. I have crossed Bielefelder roo's over rhodebars and cream legbars. I could tell what sex they were at hatch, once they dried and fluffed out. Black sex links, don't breed true. I crossed Bielefelder roo's over black sex links, I couldn't sex them as chicks. Part came out mostly black. The rest look like barred rocks with some brown around their necks.
     
  8. speedy2020

    speedy2020 Chillin' With My Peeps

    1,333
    55
    184
    Jul 24, 2010
    How does your Bielefelder x Cream Legbar chicken turn out? Any photos from the cross?
     
  9. jerryse

    jerryse Overrun With Chickens

    4,804
    1,215
    311
    Feb 21, 2010
    Sparland IL
    Barred rocks can be sexed by the size of the head spot . Males have 2 barring genes and a larger head spot . So yes you can sex them . Chick color helps in auto sexing . In Legbar and Bielefelder the males are lighter due to 2 barring genes . Some colors are hard to sex due to light chick color such as lemon cuckoo and Basque .
     
  10. jerryse

    jerryse Overrun With Chickens

    4,804
    1,215
    311
    Feb 21, 2010
    Sparland IL
    [​IMG]

    Here is a picture of a recent auto sexing project hatch . As you can see the light chicks would be hard to sex . These are Easter Eggers .
     

BackYard Chickens is proudly sponsored by