Birds have two photoreceptors, one retinal receptor, the eye, and the other in the hypothalamus. The stimulation of the special lamp for the chicken coop reaches the hypothalamus through the nerves of the optic nerve lobe; In addition, light can also act directly on the pineal gland and hypothalamus through the skull. The hypothalamus is stimulated to secrete gonadotropin-releasing hormone, which travels through the pituitary portal system to the anterior pituitary gland, causing the secretion of follicle-stimulating hormone and ovulatory hormone, which promotes the development of follicles and ovulation. The developing follicles produce estrogen, which promotes the development of the fallopian tubes and the manifestation of sexual characteristics in the hen. Ovulation hormones cause ovulation in the hen.
In the production of commercial laying hens, the light of the special lamp for the chicken coop is commonly used to supplement the lack of natural light, or only the light of the special lamp for the chicken coop is used to reasonably adjust the light required by the laying hen. Suitable light can increase the egg production of laying hens, accelerate the weight gain rate of broilers, strengthen blood circulation and appetite of chicks, help calcium and phosphorus metabolism, and enhance immunity.
Because the chicken coop special lamp has a very important role in the production of chickens or other aspects, so the special lamp will be widely used in the poultry industry, different intensity, different colors of light have different effects on chickens, we must understand clearly before use.
