Kirkuk University discusses the effect of using egg shell powder as an organic source in the diet of laying hens.

A master’s thesis in the College of Agriculture discussed the effect of using eggshell powder as an organic source of calcium carbonate in place of limestone in laying hens’ diets on productive traits, some physiological traits, and egg quality, by student Issam Tahseen Fadel, and under the supervision of Professor Dr. Rashid Hassan Hamid Al-Dalawi.

The study aimed to determine the effect of adding different levels of chicken eggshell powder to the diets of Lohman brown laying hens and its effect on the physiological blood characteristics, calcium, phosphorus, HDL, LDL, ALT, AST, total protein, uric acid, and total cholesterol.

The study concluded that using eggshell powder in laying hens’ diets reduced the liver enzyme AST and total cholesterol in the blood, but did not affect other blood characteristics.