Are White Rocks good meat birds, how fast do they grow??

[Michelles_Hen_house]

Fred's Hens :

Before the X took over the market, the white rock, especially the males, were very, very popular meat birds, and still are in many quarters. They do not grow any faster than any other DP, but nice personalities, pleasant to have around and very tasty. You won't get the odd proportions of the Cornish X, but you will get a traditional, heritage type meat bird. Since they are so cheap to buy, usually around a buck, you might just give em a try next time. You'll need to allow them 19-20 weeks to reach a size you'll find respectable.

Is that old enough for them to start crowing??? Reading this thread with interest, because I am thinking about White Rocks.​

I've had one Cornish x crow before. He was About 7 weeks when he started crowing.

 

[Parront]

I have raised Cornish-X before, I let some of them live to 12 weeks, none of them crowed. I would not raise them that long again, they were having trouble walking at the end. Six weeks, done!