title: Variations in plasma LH levels during the ovulatory cycle of the hen, Gallus domesticus.
mesh_terms: D000818:Animals; D002645:Chickens / Q000502:physiology*; D003624:Darkness; D005260:Female; D007457:Iodine Radioisotopes; D007986:Luteinizing Hormone / Q000097:blood*; D010058:Oviposition; D010060:Ovulation; D011863:Radioimmunoassay
chemical_list: D007457:Iodine Radioisotopes; D007986:Luteinizing Hormone