Comparative Appraisal of Relative Economic Efficiency of Spirulina, Cinnamon oil and Citric Acid Dietary Supplementations and Their Effect on Growth Performance and Carcass Traits in Broiler chicken

The aim of this research was to test the hypothesis of an improved growth, feed utilization efficiency, and economic efficiency (EE) of broiler chickens reared on different diets supplemented with spirulina (SPA), cinnamon oil (CO) and citric acid (CA). Total of 128 broiler chicken were divided randomly in to 4 group 32 chicks for each, with 4 replicants (8 bird/replicant).  Group1 (control) fed diet without any additives. Group2 fed control diet + spirulina (2g /kg feed). Group3 fed control diet + cinnamon oil (1ml /kg feed). Group4 fed control diet + citric acid (5g /kg feed). The result indicated that SPA, CO, and CA has a significant effect at (p<0.05) on growth performance parameters (feed intake (FI), weight gain (WG) and feed conversion ratio (FCR)). SPA recorded the highest FI while CA recorded the lowest value. It was noticed that SPA and CA do better than CO in live weight and weight gain. The best FCR was in CA group (1.61). SPA and CA has considerable effect at (P<0.05) on dressing percent while, CO had no significant effect. CO and CA had a significant impact at (P<0.05) on thymus relative weight. From The Economic point of view CA and SPA in the select doses had improved economic measures and relative economic efficiency (REE) indicating high return and net profit, benefit cost ratio, profitability percent, net profit margin. In contrast CO had no distinct effect on these parameters in the selected dose. Bearing in mind that citric acid had a preference in improving economic efficiency over spirulina. SPA, CO and CA may be used as feed additives for broiler chicken to enhance growth performance, Economically CA and SPA in the selected doses is better to increase return and profitability. Citric acid has the advantage in terms of its presence in the market and its low price compared to spirulina.