Effects of Chromochloris zofingiensis and Spirulina platensis extract on productive performance, blood parameters and antioxidant status in broiler chicken

This study was conducted to evaluate the effects of Chromochloris zofingiensis and Spirulina platensis extract on productive performance, blood parameters and antioxidant status in broiler chicken. A total of 400 male broiler chickens (Ross 308 strain) were used in a completely randomized design with five treatments with four replicates and 20 chicks per each. The broilers were fed a standard diet supplemented with Chromochloris zofingiensis and Spirulina platensis extract (0, 0.2, and 0.4 percent) from 1 to 42 days. Results showed that adding of Spirulina platensis extract (0.4 percent) in broiler's diet significantly increased production index from 1 to 14 days old (P<0.05). Supplementing with Chromochloris zofingiensis extract (0.2 percent) resulted in significant increases in the production index from 29 to 42 days old (P<0.05). The highest content of production index was observed in group supplemented with Spirulina platensis (0.4 percent) from 1 to 21 days old (P<0.05). The highest content of breast meat was observed in group supplemented with Chromochloris zofingiensis extract (0.2 percent) (P<0.05). The serum concentration of glucose, triglycerides, cholesterol, creatinine, urea and HDL were not influenced by dietary levels of Chromochloris zofingiensis and Spirulina platensis extract. Supplementation of Chromochloris zofingiensis extract significantly decreased the serum concentrations of LDL (P<0.05). Dietary levels of Chromochloris zofingiensis and Spirulina platensis extract showed no effect on serum malondialdehyde level. In conclusion, diet supplementation with Chromochloris zofingiensis (0.2%) and Spirulina platensis (0.4%) extract improved production index and carcass quality in broilers.