The calcium and phosphorus requirements of laying hens.
D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D002118:Calcium / Q000378:metabolism*; D002645:Chickens / Q000502:physiology*; D004032:Diet; D004531:Eggs; D005260:Female; D009751:Nutritional Requirements; D010758:Phosphorus / Q000378:metabolism*
D010758:Phosphorus; D002118:Calcium