Traditionally, part of what made a dual purpose breed dual purpose is that the "spent hens" had a use after their job was done.
One of the advantages of a dual purpose breed was that the extra cockerels could make good fryers, or even roasters.
There was always some breeds that were better "market birds". Sussex, Dorkings, Brahmas, etc.
Everything was changing at the turn of the century, and the ideas evolved further.
Now what is dual purpose is a broad subject, and no one considers the hen side of the equation. Dual Purpose does not mean, and never did, that the cockerels were quick to grow out. Some do of course.
Some breeds and strains of breeds strike a balance between the two goals better than others. Which that is can be argued forever. Personally, the most modern American breeds have the most potential. For example the NH and the Delaware. The cockerels should flesh out early, and the pullets should start relatively early. The hens could be able to lay 200-220 good sized eggs per year. They require a lot of grain, but they can still utilize green forage well. I think that is as good as you can get. Any better in either direction takes away from the other side. Those ideals, are a good all around bird.
It takes a lot of money to grow your own roasters out. You do not spend as much on 14wk old fryers though. I am speaking of $ per pound. 200 - 220 eggs will almost pay for a hen's feed bill.
My view of what dual purpose is broad, and what I look for in a bird is for them to be an all round bird. The numbers do not lie.
I used the two breeds to illustrate an idea. Not debate what really is better or not.
One of the advantages of a dual purpose breed was that the extra cockerels could make good fryers, or even roasters.
There was always some breeds that were better "market birds". Sussex, Dorkings, Brahmas, etc.
Everything was changing at the turn of the century, and the ideas evolved further.
Now what is dual purpose is a broad subject, and no one considers the hen side of the equation. Dual Purpose does not mean, and never did, that the cockerels were quick to grow out. Some do of course.
Some breeds and strains of breeds strike a balance between the two goals better than others. Which that is can be argued forever. Personally, the most modern American breeds have the most potential. For example the NH and the Delaware. The cockerels should flesh out early, and the pullets should start relatively early. The hens could be able to lay 200-220 good sized eggs per year. They require a lot of grain, but they can still utilize green forage well. I think that is as good as you can get. Any better in either direction takes away from the other side. Those ideals, are a good all around bird.
It takes a lot of money to grow your own roasters out. You do not spend as much on 14wk old fryers though. I am speaking of $ per pound. 200 - 220 eggs will almost pay for a hen's feed bill.
My view of what dual purpose is broad, and what I look for in a bird is for them to be an all round bird. The numbers do not lie.
I used the two breeds to illustrate an idea. Not debate what really is better or not.