title: Circadian rhythm of 1 alpha,25-dihydroxyvitamin D3 production in egg-laying hens.
mesh_terms: D000818:Animals; D002645:Chickens / Q000378:metabolism*; D002940:Circadian Rhythm; D004100:Dihydroxycholecalciferols / Q000096:biosynthesis*; D005260:Female; D006887:Hydroxycholecalciferols / Q000096:biosynthesis*; D066298:In Vitro Techniques; D010060:Ovulation
chemical_list: D004100:Dihydroxycholecalciferols; D006887:Hydroxycholecalciferols