| dc.description.abstract | Light plays an important role in the avian life. The present study was designed to evaluate exposed of monochromatic light to obtain basic information of the aspect of the quail reproduction biology that experience ovarian endocrine function which direct relation with profile oviduct and quality of the egg . Two hundred and seventy quails were divided into nine treatments of light, with ten replications and three quails in each replication. The treatments were without light, controls with 15 and 25 W, red, green, and blue lights with intensities of 15 and 25 lux. Control treatment used incandescent bulb. The red, green, and blue lights were provided by light emitting diodes (LED). All lights treatment were given for 14 h daily, started from 17.00 to 07.00. Parameters measured were serum estrogen concentrations, and weights and lengths of the oviduct on weeks 5, 7, and 9. Quails exposed to monochromatic light had higher serum estroger? concentrations (P<0,05). Quails exposed to monochromatic light had better weights and lenghts cf . the ovidud development. Blue light could be used to increase serum estrogen concentrations and stimulate shcli gland development, so the product off the egg had better quality. | en |
