I beg to differ. Australorps have little tendency to broodiness, in fact, an Australorp hen holds the world record for most eggs laid in a year, 364 eggs in 365 days!First, I am sure all the breeds on the list, whether from a hatchery or breeder, will have hens weighing at least 6 pounds and roosters weighing 8 pounds. They all qualify.
The Barred Plymouth Rock and Rhode Island Red are also listed as 200 to 280 eggs a year. I think Australorps tend to be more broody, so I am pretty sure that Rhode Island Red will lay more eggs than the Australorp.
Whether people can use all those eggs is not relevant for this. But people might want to sell eggs for eating or hatching, or maybe they have a very large family.
The hatchery chickens are bred for production of eggs, usually. I think hatchery chickens would be great for what we are discussing here.
Of course, all chicken breeds can display broodiness, and it is important that the very beat chicken can reproduce!
After all, it is a balance of meat, eggs, and chicks.
And discussing hatchery birds, very few “dual purpose” hatchery birds have roosters which weigh over 7 pounds.