Effect of organic zinc supplementation into basal diets on productive performance of laying hens

This study was carried out to determine the dietary supplementation of organic zinc on feed intake (FI), conversion ratio (FCR), egg production (EP), mass (EM) and quality. A total 120 ISA-Brown layers aged 20 weeks were used in this study. Hens distributed randomly four treatments (30 hens each) with three replicates. The supplemented into basal diet at different concentrations as follows; (T1) 0, (T2) 100, (T3) 200, (T4) 300 mg/kg. results showed T2 recorded improvement significant FI, FCR followed by T3. Also, increased significantly compared T1. T3 higher average T1 which lowest value. There no effect quality when Zn layer hens. It might be concluded that supple-mentation 100 mg/kg has improved consumption is reflected produc-tivity laying