How to feed Jumbo Cornish X Rocks???

[josytang]

I am planning to raise some jumbo cornish rock as briolers, but I have read alot about their health problems. My question is how should I feed my chicks from brooding to processing so that I could decrease the chances of them having leg problems? what kind of ration(percent) should I use at each stage??? Thanks!!!

 

[ChickenCanoe]

I play it by ear but start all birds on a 22-24% grower. For Cornish, I'd cut them back to about 18% at 3 weeks and if you still have them 7 weeks cut back to 15%.