Probiotic applications of two dominant gut Bacillus strains with antagonistic activity improved the growth performance and immune responses of grouper Epinephelus coioides

Fish & Shellfish Immunology
Yun-Zhang SunWen-Yan Lin

Abstract

The effect of dietary administration of Bacillus pumilus and Bacillus clausii, the dominant bacteria with antagonistic activity in the gut of fast growing fish, on the growth performance and immune responses of grouper Epinephelus coioides were assessed. The fish were fed for 60 days with three different diets: control (without probiotics), diet T1 supplemented with 1.0x10(8) cells g(-1) B. pumilus, diet T2 with 1.0x10(8) cells g(-1) B. clausii. No significant improvements of weight gain or specific growth rate were observed in the probiotic fed groups, but a significant improvement of feed conversion ratio was observed after 60 days of feeding. Phagocytic activity and phagocytic index of fish fed probiotic diets were significantly higher than those of fish fed the control diet for 60 days. Superoxide dismutase (SOD) concentrations showed no significant difference between the treatments and the control during the whole experiment period, but which increased by 11.4% and 18.5% after 60 days of fed with diets T1 and T2, respectively. The serum lysozyme activities of fish fed diets T1 and T2 were significantly higher than that of fish fed control diet, and had respectively increased by 34.7% and 17.4% compared to the control after...Continue Reading

Citations

Jan 16, 2014·Indian Journal of Microbiology·Quanxin GaoZhaohong Shi
Jan 15, 2014·Fish Physiology and Biochemistry·Bidhan C DeA P Sharma
Jul 15, 2011·Evidence-based Complementary and Alternative Medicine : ECAM·Haipeng CaoLiqun Lu
Jan 21, 2015·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Qing WangHaoran Lin
Jan 24, 2016·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Rui JiaJi-Lin Lei
Feb 9, 2011·Fish & Shellfish Immunology·Ramasamy HarikrishnanMoon-Soo Heo
Mar 21, 2016·Developmental and Comparative Immunology·David ParraJ Oriol Sunyer
Jun 30, 2015·Journal of Applied Microbiology·N V Hai
Jun 6, 2015·Fish & Shellfish Immunology·Najeeb AkhterMuhammad Mohsin

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