1. The efficiency of food utilization for egg production by pullets;Bolton;J. Agr. Sci. (Camb.),1958
2. Bioenergetics and growth;Brody,1945
3. The adaption of energy utilization in the laying hen to warm and cool ambient temperatures;Davis;J. Agr. Sci. (Camb.),1972
4. Gowe, R. S., W. E. Lentz, and J. H. Strain, 1973. Page 225-245 in Long-term selection for egg production in several strains of White Leghorns: performance of selected and control strains including genetic parameters of two control strains. 4th Europe. Poultry Conf., London.
5. Energy expenditure under productive conditions;Grimbergen,1974