Akademik Veri Yönetim Sistemi
GSC Biological and Pharmaceutical Sciences, cilt.2, ss.1-9, 2018 (Hakemli Dergi)
This experiment was carried out to determine the effect of dietary supplementation of Rosemary (Rosmarinus
officinalis) ethanol extract, on performance and blood parameters of broilers. One hundred twenty 1-day-old male Ross308 broiler chicks were used in this experiment. The chickens were divided into 3 groups, including one control and 2
treatment containing 40 birds each. Each group was divided into four replicates and the study lasted 42 days. Group 1
(Control group) was fed with only basal diets. Group 2 (ROE 100mg/kg) was fed basal diet supplemented with 100
mg/kg R. officinalis L. Group 3 (ROE 200mg/kg), was fed basal diet supplemented with 200 mg/kg R. officinalis L. At the
end of experiment blood samples collected. Body weight gain (P<0.01) and feed consumption (P<0.001) were decreased
when compared with control group, while feed conversion ratio is not affected. Besides, it is detected that rosemary
ethanol extract increases the enzymes antioxidant (SOD, GPx, CAT), GSH; reduces lipid peroxidation (MDA) and reduces
the ALT, AST, blood glucose level (P>0.05) and LDL-cholesterol (P<0.01). The results of this study showed that lipid
peroxidation, oxidative stress parameters significantly decreased after ROE application. Rosemary (R. officinalis L.) ethanol
extract at 200 mg/kg administered group was found to create a more positive effect on some biochemical parameters
and can be a viable alternative growth promoter in the feeding of broilers.