title: Peripheral estrogen levels during the laying cycle of the hen (Gallus domesticus).
mesh_terms: D000818:Animals; D002645:Chickens / Q000502:physiology*; D004967:Estrogens / Q000097:blood*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000378:metabolism; D007030:Hypothalamo-Hypophyseal System / Q000502:physiology; D007986:Luteinizing Hormone / Q000378:metabolism; D010058:Oviposition; D010060:Ovulation; D013997:Time Factors
chemical_list: D004967:Estrogens; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone