title: Influence of photoperiod on growth, puberty and plasma LH levels in gilts.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000502:physiology; D003624:Darkness; D004971:Estrus; D005260:Female; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood*; D010060:Ovulation; D010507:Periodicity; D010870:Pineal Gland / Q000033:anatomy & histology; D011247:Pregnancy; D012741:Sexual Maturation; D013552:Swine / Q000502:physiology*
chemical_list: D007986:Luteinizing Hormone