I am a newbie to LSB forums, although I have subscribed to the magazine for years. Lately I find I have a lot of questions about chooks, as I reared 40 Cobbs from day old and kept a couple of hens to see how they would breed. I paired them up with a Light Sussex rooster. One hen died of an apparent heart attack but the other produced several viable eggs which I popped under broody bantams. I now have a few half Cobb half Sussex hens (we ate the half breed roosters). No questions at the moment, but Hello Everybody!
Hello Duchess and welcome, especially to the chicken lovers fraternity!
Your Cobb hens need to be kept in slim condition to breed successfully. They can be reasonable egg layers, especially if kept 'fit'. The better way round is to keep a Meat bred rooster and put him over hens from a good egg laying strain-but once again you have to keep them lean!
Labrador lover for yonks, breeder of pedigree Murray Grey cattle for almost as long, and passionate poultry person for more years than I care to count.