title: Effects of low molecular weight agar and Lactobacillus plantarum on growth performance, immunity, and disease resistance of basa fish (Pangasius bocourti, Sauvage 1880).
abstract: This study evaluated effects of low molecular weight agar (LMWA) and Lactobacillus plantarum singly or combined on growth performance, immunity and disease resistance of basa fish (Pangasius bocourti). Two hundred forty fish were divided into four treatments, i.e. 0 g kg(-1) LMWA (Control), 2 g kg(-1) LMWA, 10(8) cfu g(-1)L. plantarum, and 2 g kg(-1) LMWA + 10(8) cfu g(-1)L. plantarum. Following 7, 14 and 28 days of the treatment, specific growth rate (SGR), feed conversion ratio (FCR), serum lysozyme, phagocytosis, respiratory burst and alternative complement activity (ACP) were measured. A Completely Randomized Design with four replications was applied. At the end of the feeding trial, five fish were randomly selected for a challenge test against Aeromonas hydrophila. The results showed that fish fed diet of 2 g kg(-1) LMWA and 10(8) cfu g(-1) of L. plantarum singly or combined significantly enhanced SGR, FCR, serum lysozyme, phagocytosis, respiratory burst, alternative complement activities and post-challenge survival rate of P. bocourti. The results inferred that dietary of LMWA and L. plantarum stimulated growth, immunity and disease resistance of the P. bocourti.
authors.affiliation: Department of Fisheries, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand. Electronic address: hienqbuni@gmail.com.
authors.forename: Hien
authors.initials: H
authors.lastname: Van Doan
authors.affiliation: Department of Fisheries, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand.
authors.forename: Sompong
authors.initials: S
authors.lastname: Doolgindachbaporn
authors.affiliation: Department of Plant Sciences and Natural Resources, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand.
authors.forename: Amnuaysilpa
authors.initials: A
authors.lastname: Suksri
mesh_terms: D000362:Agar / Q000494:pharmacology*; D000821:Animal Feed / Q000032:analysis* / Q000382:microbiology; D000818:Animals; D017756:Aquaculture / Q000379:methods; D002397:Catfishes / Q000254:growth & development* / Q000276:immunology*; D060467:Disease Resistance / Q000187:drug effects / Q000276:immunology*; D048191:Lactiplantibacillus plantarum; D007958:Leukocyte Count; D009113:Muramidase / Q000097:blood; D010587:Phagocytosis / Q000187:drug effects / Q000276:immunology; D016897:Respiratory Burst / Q000187:drug effects / Q000276:immunology
chemical_list: D000362:Agar; D009113:Muramidase
keywords: Aeromonas hydrophila; Lactobacillus plantarum; Pangasius bocourti; Red seaweed