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One hundred and forty four numbers of 40th week-old coloured broiler breeder hens were randomly distributed into 6 dietary treatments with three replicates with 8 chicks per replicate. The dietary treatments were: T1 (Control group): Basal diet; T2: Basal diet with 0.3 ppm of inorganic Se (SS-0.3); T3: Basal diet with 0.6 ppm inorganic selenium (SS0.6); T4: Basal diet with 0.3 ppm of organic selenium (SY-0.3); T5: Basal diet with 0.6 ppm of organic selenium (SY-0.6); and T6: Basal diet with 0.3ppm sodium selenite+0.3 ppm selenium yeast (SS-0.3+SY-0.3). The supplementation was continued for 12 weeks. The body weight, hen day egg production (%), hatchability (%) was recorded at 6wk interval. | A comparison between organic and inorganic selenium 1. effect on body weight laying performance hatchability in broiler breeder
