The effects of separate and combined use of sodium propionate salt and probiotic Pediococcus acidilactici on some growth factors and the expression of some growth-related genes in common baby carp (Cyprinus carpio)

This study examined the effect of probiotic (Pediococcus acidilactici), sodium propionate salt and probiotic compound and sodium propionate salt on growth and expression of GH and IGF-I genes in common baby carp. For this purpose, 142 baby fishes (weighing approximately 14 g) for eight weeks were treated with four treatments of zero, 0.1% probiotic pseudococcal acidic acid, 1% sodium propionate, 0.1% pseudococcus acidic acid and 1% sodium propionate , Were classified and fed. This experiment was conducted in a completely randomized design. At the end of the biomarker period, there was a significant difference between treatments. The highest body weight gain (35.53 ± 0.47 g) and specific growth rate (3.5 ± 0.01) were observed in the third treatment (p <0.05). Also, the amount of food conversion factor (1.05 ± 0.07%) was observed in the third treatment (P <0.05). After sampling, GH expression in probiotic and sodium propionate salt treatments was significantly different with other treatments (P <0.05). Also, expression of IGF-I in probiotic and sodium propionate treatments was significantly different with probiotic treatment (P <0.05). Due to the beneficial effects of P. acidilactici, sodium propionate salt and probiotic compound and sodium propionate salt are clear on the expression of GH and IGF-I genes, it seems that the use of probiotic and sodium propionate salt in fish meals Ordinary carp can affect the growth and expression of GH and IGF-I genes in this species.