title: Calcium metabolism in the laying hen. 6. Shell quality in relation to time of oviposition.
mesh_terms: D000818:Animals; D002136:Calcium, Dietary / Q000378:metabolism*; D002645:Chickens / Q000378:metabolism*; D002940:Circadian Rhythm; D004531:Eggs; D005260:Female; D008027:Light; D013046:Specific Gravity; D013997:Time Factors
chemical_list: D002136:Calcium, Dietary