The crossing of purebred Cornish and White Rock hens produces this fine broiler. Cornish Cross is the most popular, fastest and most efficient meat chicken on the market. They have large breasts, thigh and leg proportions. Their white feathers and yellow skin make for clean processing. We cannot overemphasize the importance of proper nutrition for successful results from our Cornish X Rock Cross chicks! The tremendous growth rate makes it absolutely essential to feed a broiler ration to this bird. We recommend a 23% protein starter ration for the first four weeks and a 20% protein grower ration for the remainder of the growing period. Because of the rapid weight gain of these chicks, we suggest a Vitamin Stress Pack.