Effect of Using Different Levels of Spirulina Algae (Spirulina Platensis) in The Diet on Concentration, Types of Fatty Acids, Oxidation Indicators, and Sensory Characteristics of Broiler Carcasses

This study was conducted at the Poultry Research Station of the Agricultural Research Department/Ministry of Agriculture in Abu Ghraib for the period from 25/2/2019 to 7/4/2019 (42 days) with the aim of using several levels of Spirulina (SP) Spirulina platensis in broiler diets. And their effect in the concentration and types of fatty acids, oxidation indices and sensory characteristics of the broiler carcass, 400 birds were used in this experiment One day old broiler birds of the Ross 308 strain are un sexed, with an average starting weight of 40 g/bird, and the birds were randomly distributed into five treatments with four replications per treatment (20 birds/duplicate). The following treatments included: the first (T1) control treatment (the basic diet without additives), the second (T2), third (T3), fourth (T4) and fifth treatments (T5) were used in the basic ration algae SP by 1%, 2% and 3% And 4%, respectively. The two treatments T4 and T5 showed significant superiority (P<0.05) compared to the control group in the concentration of oleic acid, palmitic acid, and the concentration of docosahexaenoic acid and linoleic acid for the treatments T3, T4 and T5 compared to the control treatment. The value of peroxide (PV) was significantly decreased (P <0.05) in the 30-day storage period for treatment T5 birds compared with the two treatments T1 and T2 and the value of thiobarbituric acid (TBA) and total volatile nitrogen (TVN) for all treatments compared to the control treatment, and for the storage period of 60 One day, all oxidation indexes (PV, TBA, TVN) were significantly decreased (P <0.05) for all treatments using Spirulina. No significant effect of spirulina was shown on sensory evaluation scores for the chest and thigh cuts compared to the control treatment.