عنوان مقاله [English]
Considering that various effects of probiotics, prebiotics, and symbiotic on production and growth of broiler chicks has been reported previously, the aim of this study was to investigate the effects of probiotics and prebiotics and their mixture, on performance, antioxidant levels and lipid peroxidation index in the blood of Japanese quails. Thus, 192 day- old- Japanese quails were distributed randomly to 4 groups with 4 replicates of 12 male and female and evaluated for 42 days. The control group only received basal diet, but in the 2nd group (probiotic group) active saccharomyces cerevisiae 1 gr/Kg of feed, in the 3rd group (prebiotic group) inactivated saccharomyces cerevisiae 0.5 gr/Kg-feed of feed, and in the 4th group (synbiotic group) 0.5 gr/Kg saccharomyces cerevisiae and 250 mg/Kg-feed inactivated saccharomyces cerevisiae was added to the basal diet. Results indicated that mean serum levels of Malondialdehyde (MDA) was statistically different among males of different groups (p<0.05). Also the highest and lowest MDA levels were observed in the 4th and 3rd groups respectively with a statistically significant difference (p<0.05). Total antioxidant capacity (TAC) of plasma was not different statistically in the studied groups. On the other hand, mean feed consumption and body weight in the 2nd and 3rd groups was increased in comparison to control group and FCR was decreased significantly in comparison to control and synbiotic group. The best carcass efficiency was observed in the prebiotic group. The results showed that the employed probiotics and prebiotics were only effective in performance of Japanese quails, but did not have a specific effect on serum-MDA and plasma-TCA levels.