Combined effects of dietary low molecular weight sodium alginate and Pediococcus acidilactici MA18/5M on growth performance, haematological and innate immune responses of Asian sea bass (Lates calcalifer) juveniles. Issue 79 (August 2018)

• Record Type: Journal Article
• Authors: Ashouri, Ghasem; Mahboobi Soofiani, Nasrollah; Hoseinifar, Seyed Hossein; Jalali, Seyed Amir Hossein; Morshedi, Vahid; Van Doan, Hien; Torfi Mozanzadeh, Mansour
• Is Part Of: Fish & shellfish immunology. Issue 79(2018)
• Page Start: 34
• Page End: 41
• Publication Date: 2018-08
• Subjects: Asian sea bass -- Pediococcus acidilactici -- Sodium alginate -- Mucosal immunity -- Innate immunity -- Haematological parameters; Fishes -- Immunology -- Periodicals; Shellfish -- Immunology -- Periodicals; Poissons -- Immunologie -- Périodiques; Crustacés -- Immunologie -- Périodiques; 571.9617
• DOI: 10.1016/j.fsi.2018.05.009
• Languages: English
• ISSNs: 1050-4648

Abstract

Abstract: Six weeks feeding trial was conducted to examine the effects of dietary administration of low molecular weight sodium alginate (LMWSA) and Pediococcus acidilactici MA 18/5M (PA) on humoral and mucosal immune responses, haematological parameters and growth performance, of Lates calcarifer juveniles. Fish (12.0 ± 0.2 g) were fed experimental diets as follows: Control (diet 1, basal diet), 5 g kg −1 LMWSA (diet 2), 10 g kg −1 LMWSA (diet 3), 0.9 × 10 7 CFU g −1 PA (diet 4), 5 g kg −1 LMWSA + 0.9 × 10 7 CFU g −1 PA (Diet 5), and 10 g kg −1 LMWSA + 0.9 × 10 7 CFU g −1 PA (Diet 6). Results indicated a significant ( P < 0.05) increase in innate immune parameters including serum lysozyme, bactericidal, hemolytic and respiratory burst activities as well as mucosal immune responses including lysozyme and bactericidal activities, when diet was supplemented with immunostimulants. Moreover, the combined effects of LMWSA with PA resulted in more pronounced immunological responses compared to the control and singular administration. Red and white blood cell counts significantly increased with either singular or combined administration of LMWSA and PA compared with the control group ( P < 0.05). The singular administration of PA and combined supplementation of 5 g kg −1 LMWSA with PA significantly increased growth performance and feed intake compared with other experimental groups ( P < 0.05). These results indicated that combined administration of LMWSA and PA can be considered as beneficial feed additive and immunostimulant in L. calcarifer juveniles. Highlights: Dietary administration of LMWSA + probiotic were effective feed additive for Asian sea bass. Dietary administration of LMWSA + probiotic improved immune responses in Asian sea bass. 5 g kg −1 LMWSA + probiotic enhanced growth performance of Asian sea bass.