he effect of Lactobacillus acidophilus on growth, feed efficiency, gastrointestinal enzymes and hematological parameters of Golden Severum Heros severus Heckel, 1840

The present study was to evaluate the effects of dietary supplementation of lactobacillus acidophilus on growth performance and feed efficiency, digestive enzymes activity and some hematological parameters of Golden severum. In this study, 120 fish (Heros severus) with an average weight of 18.72±0.3 g distributed within experimental tanks, four treatments with 3 replications were arranged. Fish were fed 4 different levels of Lactobacillus acidophilus (0, 1.5×108, 3×108 and 6×108) for 60 days. At the end of the experiment, growth parameters, feed efficiency, digestive enzymes activity and hematological parameters were investigated. Results showed that lactobacillus significantly (p