عنوان مقاله [English]
In this experiment, the effect of dietary administration of betaine and Natozim multi-enzyme on blood biochemical indices in common carp (Cyprinus carpio) were investigated. For this purpose, 180 fish with an average weight of 19.5±0.5 gr, were fed diets supplemented with 3 different levels of 0, 1 and 1.5% in combination with 0, 250 and 500 mg/l for 8 weeks. At the end of the feeding trial, biochemical indices, Calcium, Alp, Alb, Glocuse were assessed. Results showed a significant increase (P≤0.05) of glucose with Natozim increase in the diet, a significant increase (P≤0.05) of calcium in highest doses of Natozim and betaine, significant increase of (P≤0.05) alkaline phosphatase in combined treatments of Natozim and betaine and significant increase (P≤0.05) of albumin in highest doses of Natozim and betaine. Generally, the use of betaine and multi-enzyme Natozim improved blood biochemical parameters as immune parameters in carp.