Egg Production Is Related to Light Length and Intensity

Abstract

Egg production is related to the length and intensity of light the bird receives daily. Light stimulates the anterior pituitary gland through the optic nerve to release FSH (follicle stimulating hormone) and LH (luteinizing hormone). Light energy also penetrates the skull, skin and feathers. FSH increases the growth of ovarian follicles. Upon reaching maturity, the egg is released under the influence of LH (Romanov A., Romanova A., 1959)