 I've got five birds from three different breeds. First up, I've got a couple of Ross 308s. These are one of the two main breeds used in the most intensive industrial indoor broiler systems around the world. They've been selectively bred for meat production at incredible speed, and they grow to full size in four to five weeks. Mine are called Layla, Lay-la, get it? And Nugget, which was a name that my producers insisted on.