Don't get to set in your ways because generally speaking the bigger the breed the slower they g.row.(to a certain point) Giants for example
Right, you have to keep your breed in mind when setting goals for culling. Like the Brahma was used for a roaster with an ideal butcher age around 6 months. It wouldn't make sense to butcher them out for a fryer at 14 weeks, just as it wouldn't make sense to raise a Leghorn out to butcher as a roaster at 6 months.