Abstract :
The fact that the use of artificial light has been found in some instances, to stimulate winter egg production by as much as 70 per cent, has brought up the question as to what intensity is conducive to maximum production. The answer to this was obtained only after an extended investigation covering a period of two years. As a result of observations carried on jointly by the Department of Rural Engineering and the Department of Poultry Husbandry of the New York State College of Agriculture, it was found that the illumination necessary for active feeding should be in the neighborhood of one foot-candle. It was also discovered that besides the illumination on the feeding area, it was quite essential that there be sufficient direct light on the perches, in order that the birds would not have a tendency to roost there.
