Effect of Lactococcus lactis and Enterococcus faecium on growth performance, digestive enzymes and immune response of grouper Epinephelus coioides

By Y.‐Z. Sun, Hong-Ling Yang, Ru-Long Ma, K. Song, J.S. Li. 2012

108 citations recorded by the source corpus.

The effect of dietary administration of Lactococcus lactis MM1 and Enterococcus faecium MM4, two strains of lactic acid bacteria isolated from the gut of juvenile grouper Epinephelus coioides, on the growth, feed utilization, digestive enzymes and immune response of juvenile E. coioides was evaluated. The fish were fed for 60 days with three different diets: control diet (without probiotic), diet P1 supplemented with 1.0 × 108 CFU g−1L. lactis or diet P2 with 1.0 × 108 CFU g−1E. faecium. Although growth and feed intake decreased slightly, significant improvement of feed utilization was observed in fish fed diet P1 and diet P2 for 60 days. The hepatopancreatic protease activities in the two probiotic treatments were significantly higher than that in the control. The phagocytic activity, serum superoxide dismutase activity and complement component 4 (C4) and IgM levels were not significantly affected by diet P1 and diet P2. Serum complement component 3 (C3) levels in the two treatments were significantly higher than that in the control. Significant increased serum lysozyme activity was observed in fish fed the diet P1, while significant decreased lysozyme activity was observed in fish fed the diet P2 compared with the fish fed the control diet. There was a significant interaction effect between diet and administration date for the complement C4. The study demonstrates potential for L. lactis MM1 and E. faecium MM4 to improve the feed utilization and modulate the immune function in E. coioides.

Subfields: Aquatic Science, Immunology

View Paper: https://www.semanticscholar.org/paper/8c441c5190a68119a80c25ed132b9537b7fc82c2

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Citations in the corpus

Host-Associated Probiotics: A Key Factor in Sustainable Aquaculture (2020, background): “In a study with grouper, Sun et al. (2012) reported that dietary supplementation of E. faecium and Lactococcus lactic, originating from the gut of orange-spotted grouper, significantly increased feed utilization, hepatopancreatic protease activities, complement component-3, and serum lysozyme…”