1. Official Methods of Analysis,1980
2. Effects of dietary energy concentration on utilization of energy by broiler chickens and on body composition determined by carcass analysis and predicted using tritium;Farrell;Br. Poult. Sci.,1974
3. Gowe, R. S., and R. W. Fairfull, 1980. Performance of six long-term multi-trait selected leghorn strains and three control strains, and a strain cross evaluation of the selected strains. Pages 141–162 in Proc. South Pacific Poultry Sci. Conv.
4. Nitrogen balance studies and nitrogen retention;Just,1982
5. Comparison of procedures for assessing nitrogen retention in chicks;Sanslone;Br. J. Nutr.,1962