THE PATTERN OF NUTRIENT AND ENERGY-UTILIZATION, RETENTION AND THE CHEMICAL-COMPOSITION OF THE BODY IN BROILERS FROM HATCHING TO MATURITY

The change of the body composition, of the energy content, and of the energy and protein balances was studied in male and female broiler chi cks from hatching to maturity (about 140 days). The animals received c orn, soybean meal and fish meal based diets which ensured maximal grow th. Correlation were established between the ingested feed and the bod y evolution both from the point of view of quantity and quality, deter mining the content of protein, fat, ash, water and energy. By experime nts of digestibility and by comparative slaughterings the energy and p rotein requirements both for maintenance and for protein and fat synth esis were determined.