Golden Comet vs ISA Brown

[Feather Locklear]

Hello all, I am looking for the most productive brown egg layers. It seems ISA Brown/Golden Comet are reportedly the most prolific layers. I have read those two are actually the same breed - just a different name. Is that true? And what are your opinions on which breeds are the most prolific brown egg layers? Thank you!

 

[nuthatched]

Generally the same thing, high production but short lifespans and typically die of reproductive issues.