Inclusion of <Emphasis Type="Italic">Pediococcus acidilactici</Emphasis> as probiotic candidate in diets for beluga (<Emphasis Type="Italic">Huso huso</Emphasis>) modifies biochemical parameters and improves immune functions |
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| Authors: | Maryam Ghiasi Mohammad Binaii Alireza Naghavi Hosseinali Khoshbavar Rostami Hossainali Nori Atefeh Amerizadeh |
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| Institution: | 1.Caspian Sea Ecology Research Center, Iranian Fisheries Research Organization, Agriculture Research Education and Extension Organization,Sari,Iran;2.Shahid Rajaeii Aquaculture Propagation Center,Sari,Iran;3.Research Center of Inland Waters, Iranian Fisheries Research Organization, Agriculture Research Education and Extension Organization,Gorgan,Iran;4.Sharif University of Technology,Tehran,Iran |
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| Abstract: | Administration of probiotic candidates in fish has generally been shown as a useful strategy to improve growth performance, survival, digestive enzyme activity, and gut microbiota. Unfortunately, the sero-immunological responses of different fish to different probiotic candidates are poorly understood. The present study assessed the effect of Pediococcus acidilactici as a probiotic on the biochemical and immunological parameters of beluga. Fish (248.32?±?10.21 g) were fed a control diet (without P. acidilactici( and three different doses of P. acidilactici-supplemented diets (107, 108, and 109 CFUg?1 diets) for 8 weeks. On week 8, blood and serum were sampled. Dose-dependent increase of immunological parameters (respiratory burst activity, lysozyme content, serum antibacterial activity, and total immunoglobulin) and biochemical parameters (total protein and albumin levels) was observed. However, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were significantly increased in the juvenile beluga fed by 109 CFUg?1 P. acidilactici-supplemented diet compared to the other groups. Based on the results of this evaluation, it is reasonable to conclude that the inclusion of P. acidilactici as probiotic in diets for juvenile beluga improves the sero-immunological parameters of the fish and should be considered by farmers as a strategy to improve fish health. |
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