Diammonium citrate (DAC) and urea were not used beneficially as nitrogen sources in the diet of young chicks. Supplementation of 0.43% urea to a low-protein practical diet did not significantly affect gain or feed efficiency. Adding 2.85% or 5.70% DAC to a low-protein basal depressed growth and feed efficiency significantly. Percentages of nitrogen intake absorbed and retained by chicks were depressed by DAC. When diets were balanced by added amino acids. DAC did not depress weight gains, but nitrogen percentage retention was still decreased by DAC.
The Effects of Drug Treatments on DPIf Utilization 13 Non-protein Nitrogen for Young Chicks Non-protein Nitrogen for Laying Hens The Effects of Drug Treatments on NPN Utilization EXPERIMENTAL PROCEDURES Studies with Laying Hens Experiment I Objectives General procedure Diets Management and data collection Results Studies with Young Birds General Pre-experimental Management Experiment II Objectives General procedure Diets Management and data collection Results Experiment III Objectives General procedure Diets Management and-lata collection $3 iii Page Results Experiment IV Objectives General procedure Diets Management and data collection 59 Results
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