Effect of strontium ranelate and cerium oxide addition in the diet on egg production and eggshell quality in laying hen

Minerals are used widely as feed additives in the diets of poultry to enhance bone and egg quality productivity. Therefore, current study aimed evaluate impact strontium ranelate cerium oxide addition diet on production eggshell laying hens. In this experiment, a total 240 hens at age 44 weeks old, were divided into six treatments, with four replicates per treatment (10 replicate). The fed standard for five an introductory period preparation. design dietary treatments was formulated as: control (T1) basal diet, Strontium (SrR) 400 800 mg/kg (T2 T3), Cerium (CeO) 250 500 (T4 T5) their combination + (T6) diet. Laying hen’s performance and, (eggshell strength, thickness, percentage, minerals eggshell, yolk index Haugh unit), analyzed. results showed that SrR CeO did not affect performance, index, unit, ratio Ca, P, Ce eggshell. However, supplementing significantly increased Sr compared control, while or strength thickness. group. conclusion, (800 mg/kg) improved