Does anyone know if there is a DNA test to find out if a bird carries the blue or green egg gene?
I just grew out birds from another breeder and they just started laying. Unfortunately, some of their eggs are green. My original flock laid sky blue eggs, but 2 of the 4 girls were not crested so I thought it would be a good idea to get chicks from a crested flock. I plan to trap nest them to see who is laying blue and who lays green. However, if my roosters have the green gene I will be right back in the same situation the next generation. I am hoping I can get a blood test on the boys to see if they carry the green gene.
Also, while I am at it.... Can you test to see if a black bird is split for lavender with a DNA test?
That is right green eggs come from brown genes + blue genes. There are at least 15 different brown egg genes so I seriously doubt you could test for it. You could test mate for it though. I would guess you could breed the rooster to a white egg layer and grow out at least 5 or 6 pullets. If any of those pullets lay green tinted eggs, then your rooster carries brown genes. It would take you 8-10 months but it would be a solid answer.
Not sure on the lavender split. Again you could figure out how to test mate for it. Might contact someone with more genetics background like @tadkerson .