1. Application of specific gravity to the determination of eggshell thickness;Arscott,1961
2. Two feeding periods best in limiting time feeding;Harrison;Poultry Digest,1972
3. Phase watering for laying stock;Hill;Can. Poultry Rev.,1969
4. Consequences of limiting cage layer watering time;Hill;Poultry Sci.,1969
5. Johnston, G. W., M. H. Swanson and C. A. Salverson, 1973. Feed restriction through three lay cycles. Poultry Institute Proceedings, Univ. Cal. Agric. Ext. pp. 8-13.