title: Effects of dietary onion (Allium cepa) powder on growth, innate immune response and hemato-biochemical parameters of beluga (Huso huso Linnaeus, 1754) juvenile.
abstract: The present study was aimed at determining the effects of dietary onion powder on growth, innate immune response and hemato-biochemical parameters of beluga juvenile (Huso huso). Basal diets containing onion powder 0 (control), 0.5 and 1% of feed were fed to beluga juvenile. At the end of the experiment, the highest weight gain (WG%) and specific growth rate (SGR) was observed in group fed with 1% onion (P < 0.05). There were no significant difference (P > 0.05) about feed conversion ratio (FCR) in treatment groups that fed diets containing various levels of onion powder. After 8 weeks, serum lysozyme activity, superoxide dismutase activity (SOD), respiratory burst activity and serum total immunoglobulin (Ig) showed a significant increase in treatment group with 1% onion powder compared to other groups (P < 0.05). The group fed 1% onion showed a significantly increases in the number of erythrocytes (RBC), leucocyte (WBC), haematocrit (Hct) levels compared to the control group (P < 0.05). Haemoglobin, monocyte, lymphocyte and neutrophil had no significant change (P > 0.05) in treatment groups and control. The analysis of AST and LDH levels showed a significant decrease in 1% onion compared to the control and 0.5% onion diet (P < 0.05), while ALT and ALP levels were not influenced (P > 0.05). The blood glucose, total protein, triglyceride, cholesterol, albumin and globulin levels were lower in treated groups compared with the control (P < 0.05). The results of this study demonstrated that dietary onion powder could be an improvement in growth, hematological parameters and immune function of beluga juvenile.
authors.affiliation: Department of Fisheries, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran. Electronic address: akrami.aqua@gmail.com.
authors.forename: Raza
authors.initials: R
authors.lastname: Akrami
authors.affiliation: Department of Fisheries, Faculty of Natural Resources and Hamoun International Wetland Research Institute, University of Zabol, Zabol, Sisatan and Baluchestan, Iran.
authors.forename: Ahmad
authors.initials: A
authors.lastname: Gharaei
authors.affiliation: Young Researchers and Elite Club, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran.
authors.forename: Majid Razeghi
authors.initials: MR
authors.lastname: Mansour
authors.affiliation: Department of Fisheries, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Galeshi
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000818:Animals; D001774:Blood Chemical Analysis / Q000662:veterinary; D004032:Diet / Q000662:veterinary; D019587:Dietary Supplements; D005399:Fishes / Q000254:growth & development* / Q000276:immunology* / Q000378:metabolism; D006403:Hematologic Tests / Q000662:veterinary; D007113:Immunity, Innate; D007492:Iran; D019697:Onions / Q000737:chemistry*; D011208:Powders; D016897:Respiratory Burst
chemical_list: D011208:Powders
keywords: Blood parameters; Huso huso; Immune response; Onion powder