I have an ISA Brown (I know already a "mixture" and unreliable) that lays beautiful brown eggs with a purple/pink bloom consistently. I was wondering if it was possible to try to incubate and single out the tinted bloom gene? What breed would be best to put with her for that purpose? I'll add pictures but it's incredibly hard to get the total effect on camera. Also every egg pictured is actually a brown egg identical to the ones in the center of the carton but with a thick bloom.