title: Studies of the use of calcium carbonate in the feeding of laying hens during summer months.
mesh_terms: D000284:Administration, Oral; D000821:Animal Feed; D000818:Animals; D002119:Calcium Carbonate / Q000008:administration & dosage* / Q000378:metabolism; D002136:Calcium, Dietary / Q000008:administration & dosage* / Q000378:metabolism; D002645:Chickens / Q000378:metabolism*; D004063:Digestion; D004528:Egg Shell / Q000032:analysis; D005243:Feces / Q000032:analysis; D005260:Female; D009584:Nitrogen / Q000378:metabolism; D010058:Oviposition; D012621:Seasons; D013696:Temperature
chemical_list: D002136:Calcium, Dietary; D002119:Calcium Carbonate; D009584:Nitrogen