Maniat Milad, Salati Amir Parviz, Zanguee Nasim, Mousavi Seyed Mohammad, Hoseinifar Seyed Hossein
Department of Fisheries, Faculty of Marine Natural Resources, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran.
Department of Fisheries, Faculty of Natural Resources, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
Aquac Nutr. 2023 Feb 14;2023:1808640. doi: 10.1155/2023/1808640. eCollection 2023.
The aim of this study was to investigate the synbiotic effects of (PA) and isomaltooligosaccharide (IMO) on the performance of juvenile common carp (). A total of 360 fish (17.22 ± 0.19 g) were randomly divided into six groups with three replicates of 20 fish each. The trial continued for 8 weeks. The control group was fed only basal diet; PA was fed basal diet supplemented with 1 g/kg (10 CFU/kg) PA, IMO5 (5 g/kg IMO), IMO10 (10 g/kg IMO), PA-IMO5 (1 g/kg PA and 5 g/kg IMO), and PA-IMO10 (1 g/kg PA and 10 g/kg IMO). The results indicated that the diet containing 1 g/kg PA and 5 g/kg IMO significantly increased the fish growth performance and decreased the feed conversion ratio ( < 0.05). Overall, blood biochemical parameters, serum (lysozyme, complements C3 and C4) and mucosal (protein, total immunoglobulin, and lysozyme) immune responses, and antioxidant defense of fish also improved in the PA-IMO5 group ( < 0.05). Therefore, a combination of 1 g/kg (10 CFU/kg) PA and 5 g/kg IMO can be recommended as a beneficial synbiotic additive and immunostimulant in juvenile common carp.
本研究旨在探讨植物乳杆菌（PA）和低聚异麦芽糖（IMO）对鲤幼鱼生长性能的合生元效应。总共360尾鱼（17.22±0.19克）被随机分为六组，每组20尾鱼，设三个重复。试验持续8周。对照组仅投喂基础饲料；PA组投喂添加1克/千克（10⁸CFU/千克）PA的基础饲料，IMO5组（5克/千克IMO），IMO10组（10克/千克IMO），PA-IMO5组（1克/千克PA和5克/千克IMO），以及PA-IMO10组（1克/千克PA和10克/千克IMO）。结果表明，含有1克/千克PA和5克/千克IMO的饲料显著提高了鱼的生长性能并降低了饲料转化率（P<0.05）。总体而言，PA-IMO5组鱼的血液生化参数、血清（溶菌酶、补体C3和C4）和黏膜（蛋白质、总免疫球蛋白和溶菌酶）免疫反应以及抗氧化防御能力也有所改善（P<0.05）。因此，1克/千克（10⁸CFU/千克）PA和5克/千克IMO的组合可推荐作为鲤幼鱼有益的合生元添加剂和免疫刺激剂。
