TY - BOOK AU - Mickael,Magda Kelada TI - Parathyroid activities during the egg laying cycle of hens PY - 1992/// KW - Chickens KW - Eggs KW - Parathyroid hormone N1 - Thesis (Ph.D.)--Cairo University, 1992; Includes bibliographical references (leaves 116-143); Microfiche; ASUNET; Ain Shams University; 3 microfiches : negative ER -