Abstract
The egg production of chickens is a complex polygenic type of inheritance and is controlled by many genes. The laying performance of chickens is the result of a complex process regulated by the hypothalamic-pituitary-gonadal system. This review summarizes the information on the effect of polymorphisms of follicle stimulating hormone (FSHR), luteinizing hormone (LHCGR), progesterone (PR) and prolactin (PRLR) receptor genes on the egg production and reproductive performance of chickens. The data presented show that the polymorphisms of these genes are promising for use in breeding programs to improve egg production and reproductive performance of chickens.
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