Abstract
Light is an important aspect of an animal’s environment. Avian as well as mammalian species respond to light
energy in a variety of ways. Recent research has indicated that light source may affect body weight, immune
response, livability and health status. Broiler behavior is strongly affected by light sources. So the present project
was designed to study the effect of light sources on the production performance of broilers. For this purpose, 500
day-old broilers purchased from the local market were reared for three days (adaptation period) in one group.
Then these were randomly divided into five experimental groups each comprising of 100 birds. Group A was
given 25.incandescent light (INC), Group B was given fluorescent light (FC), Group C was given metal halide light
(MH), Group D was given high pressure sodium light (HPS) and Group E was given no light source (control).
Performance trial in terms of measurement of weekly body weight, weekly feed consumption, feed conversion
ratio (FCR), daily water consumption and mortality were checked. Among various lighting sources, MH proved the
best light source regarding main parameters of production performance.
