REFERENCES
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- King, D. F. (1958). Get more eggs with new lighting plan. Poultry Tribune, Feb. 1958.
- King, D. F. (1960,a). Artificial light for growing pullets. Highlights of Agric. Res., Vol. 7/4
- King, D. F. (1960,b) Effects of increasing, decreasing and constant lighting treatments on growing pullets. Poult. Sci. 40: 479–484.
- Morris, T. R., and S. Fox (1958). Light and sexual maturity in the domestic fowl. Nature, Lond 181: 1453–1454.
- Morris, T. R., and S. Fox (1959). The use of lights to delay sexual maturity in pullets. Brit. Poult. Sci. 1: 25–36.
- Morris, T. R., and S. Fox (1960). Increasing versus constant day length for laying pullets. Brit. Poult. Sci. 2: 59–67.