Effect of supplementation of Nigella sativa L.,natuzyme and their mixture to broiler diets : 1. performance and carcass characteristics [electronic resource].

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The objective of this investigation was to study the effects of different levels of Nigella sativa seeds powder (NS}, Natuzyme (NZ, commercial multi enzyme) or their mixture supplementation to basal diet on growth performance and carcass characteristics of broiler chicks under Egyptian conditions. Two hundred and seventy (270) one - day old (Arbor- acres) broiler chicks were used. All birds were individually weighed and randomly assigned to nine treatment groups nearly similar in average body weight, ( 3 replicates of 10 birds each). Nigella sativa and /or Natuzyme were added to the basal diet (starter and finisher} as follows: T₁: basal diet (control, without any supplementation), T₂: basal diet + 2% Nigella sativa, T₃: basal diet + 4% Nigella sativa, T₄: basal diet + 0.03% Natuzyme, T₅- basal diet + 0.05% Natuzyme, T₆: basal diet + 2% Nigella sativa + 0.03% Natuzyme, T₇: basal diet + 2% Nigella sativa + 0.05% Natuzyme, T₈: basal diet+ 4% Nigella sativa+ 0.03% Natuzyme and T₉: basal diet+ 4%, Nigella sativa + 0.05% Natuzyme. The experiment lasted for 49 days. Performance parameters and carcass characteristics were determined. Results indicated that birds fed the mixture of Nigella sativa powder with Natuzyme supplemented diets had significantly (P≤0.05) higher means of final live body weight and body weight gain. Feed conversion was significantly (P≤0.05) improved by mixed levels of Nigella sativa powder and Natuzyme mixture supplement.

Summary in arabic.

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