A Study of New Hampshire×Barred Columbian Chicks from Two Days of Age to Ten Weeks of Age

CHEMICAL analyses of chick organs and bones have not been reported for chicks sampled at successive age periods under identical conditions. Sturkie (1954) does not give data on the chemical components of chick organs and bones. When the values for chemical constituents of chick organs and bones have been established for chicks fed rations free of antibiotics and coccidiostats, then chemical analyses can be used to evaluate the effect of antibiotics and coccidiostats on chick organs and bones. This paper reports the findings in chicks fed a ration free of antibiotics and coccidiostats. MATERIALS AND METHODS New Hampshire×Barred Columbian cockerels were obtained at two days of age and fed ad libitum a chick ration (Table 1) free of antibiotics and coccidiostats until they were ten weeks of age. The ration (Table 1) is a broiler ration used by the Poultry Division of the University of Illinois. The chicks were wing …