Though I am new to this, I've noticed that it comes down to my breeding stock. My originals all came from the same place and i don't think they were fed right cause all are on the smaller side. My main Roo in the breeder pen is only 7oz but depending on who my chicks Mamas were the size will vary. Going back to my hatching where I only had 2 survive, the Italian hen is roughly 11oz as where the Rosetta Tuxedo roo is only 7 soaking wet. So does that mean one is jumbo and other isn't? Is the standard being set on weight alone or what parents are?