The Effect of Probiotic Lactobacillus acidophilus in the Diet to Supplement the Growth Indices of Common Carp (Cyprinus carpio)

Probiotics are feed supplements which have beneficial effects on the hosts and promote intestine microbial flora and growth parameters. In this study, 240 specimens common carp (Cyprinus carpio) with mean weight of 12±0.5 g in 4 treatments were fed in triplicate by different levels of Lactobacillus acidophilus probiotic (control group without probiotic, treatment 1 with 5 percent of feed weight, treatment 2 with 7% of feed weight, and treatment 3 with 9% of feed weight) in same condition for 60 days and Its their effects on growth parameters and survival were evaluated. Results showed that 7 percent Lactobacillus acidophilus had a significant difference with the control group and led to an increase in specific growth rate and final body weight in common carp fry (P<0/05). At the end of experiment 7 percent Lactobacillus acidophilusin feed led to an increase in survival rate. According to the results, adding Lactobacillus acidophilusin in the diet is suggested for better and survival in common carp diet.