METHOD OF IMPROVING THE SHELL QUALITY OF POULTRY EGGS

摘要

A method of improving the shell quality of poultry eggs so as to increase their resistance against cracking and breakage which consists in the administration to the laying hens of 24R,25-dihydroxy-cholecalciferol (24R,25(OH)2D3) and either 1 alpha -hydroxy-cholecalciferol (1 alpha (OH)D3) or 1 alpha ,25-dihydroxy-cholecalciferol (1 alpha ,25(OH)2D3).