caa a22 4500 397569289 CHVBK 20180308164836.0 cr unu---uuuuu 161202e199603 xx s 000 0 eng 10.3382/ps.0750362 doi (NATIONALLICENCE)oxford-10.3382/ps.0750362 Effect of Day to Day Variation of Dietary Energy on Residual Feed Intake of Laying Hens [Elektronische Daten] [THOMAS H. D'ALFONSO, HARVEY B. MANBECK, WILLIAM B. ROUSH] An experiment was conducted that examined the effect of day-to-day variability of dietary energy on feed intake behavior. Three levels of average daily dietary ME composition (2,580, 2,814, and 3,009 kcal/kg) and three levels of day-to-day variability of ME (low, medium, and high) were assigned to nine groups of DeKalb-XL laying hens in a 3 × 3 factorial design. Each of the nine treatments contained 35 individually caged birds. Daily measurements of feed intake, egg production, and egg mass were taken for each bird in this 56-d experiment. Pre- and postexperiment body weights were taken at 23 and 31 wk of age. Increasing levels of day-to-day variance of ME were associated with increased feed consumption for each mean level of ME (P < 0.01) and increased variability of day-to-day feed intake for the 2,580 kcal/kg mean level (P < 0.01). No significant differences (P < 0.01) in egg production, egg mass, or body weight were observed. © 1996 Poultry Science Association, Inc. Metabolism and Nutrition nationallicence layer nationallicence feed intake nationallicence metabolizable energy nationallicence variance nationallicence D'ALFONSO THOMAS H. Department of Agricultural and Biological Engineering and aut MANBECK HARVEY B. Department of Agricultural and Biological Engineering and aut ROUSH WILLIAM B. Department of Poultry Science, Pennsylvania State University, University Park, Pennsylvania 16802 aut Poultry Science Oxford University Press 75/3(1996-03), 362-369 0032-5791 75:3<362 1996 75 ps https://doi.org/10.3382/ps.0750362 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3382/ps.0750362 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- D'ALFONSO THOMAS H. Department of Agricultural and Biological Engineering and aut NATIONALLICENCE 700 1- MANBECK HARVEY B. Department of Agricultural and Biological Engineering and aut NATIONALLICENCE 700 1- ROUSH WILLIAM B. Department of Poultry Science, Pennsylvania State University, University Park, Pennsylvania 16802 aut NATIONALLICENCE 773 0- Poultry Science Oxford University Press 75/3(1996-03), 362-369 0032-5791 75:3<362 1996 75 ps Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford