Influence of Continuous Light on Leghorns

PROBLEMS in poultry husbandry dealing with artificial light in houses have commanded the attention of poultrymen for many years, but it is only recently that the use of continuous light throughout the night has been reported. Jull (1930) states that artificial lights have been kept burning in laying houses all night long during the winter months in certain oil field sections of Oklahoma and Texas where gas is readily available but gives no information as to the advantages or disadvantages of this practice. It has been a practice for the last twenty years in oil field sections in Oklahoma to keep natural gas jets burning day and night in order to consume the surplus gas from oil wells. In these sections where poultry houses were located near gas jets the birds were noted to make use of the artificial light at night but no specific information can be obtained as . . .