- Mar 18, 2012
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A red Roo...Most often A Rhode Island or a New Hampshire is used over a female that has a barring gene...like any barred or cuckoo breed. In that mix the boys are black with a head spot the girls hatch out mottled red and black. My Dorkings are Silver Grey...the Silver Duckwing pattern... and the red Roo over them produces a yellow male and a red female. The same thing happens with the Red roo over a Delaware hen (Colombian Pattern). Probably I have got some of those cooking right now under Jamie Lee.Just two more genetics questions and I will stop, I promise! Can the roo be any color in this particular combination with barred or cuckoo hen? And would love to hear how the Dorking sex link works too.
Basically the Red over a barred or silver based color produces a sex link.
Also, My Delaware (colombian pattern) rooster produces a sex link when mated with barred or cuckoo. The boys are black with a head spot the girls are solid jet black. I think the one that died in the shell was a pullet of this mix (mama was CA Grey).
I really only know what I have learned from my own hatches and other people. I am by no means any sort of expert...I just listen well.
Another thing that is exciting to me is that I can make blue sexlinks by crossing a Blue or Splash cockerel with a barred or cuckoo girl. This is good news! I am hoping to hatch blue barred rocks at some point and won't they be cool to play scientist with???
In other exciting updates...I had someone contact me for hatching eggs for a school project so I am going to give them eggs from my Dels, Dorkings, and CA Greys. The kids probably would like to see some colored eggs too so I will pass a couple of my olive eggers eggs in as well. She carries a barring gene and lives with a red rooster so those might also be sex links. The boys could be red barred!
This is a super fun tool once you learn how to use it....It is how I do my sleuthing. http://kippenjungle.nl/Overzicht.htm#kipcalculator
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