Objective:To evaluate the effects of four different concentrations of Bacillus subtilis(B.subtilis)and Bacillus circulance(B.circulance)(1×10^(4),2×10^(4),3×10^(4)and 4×10^(4)CFU/g)on growth and re...Objective:To evaluate the effects of four different concentrations of Bacillus subtilis(B.subtilis)and Bacillus circulance(B.circulance)(1×10^(4),2×10^(4),3×10^(4)and 4×10^(4)CFU/g)on growth and resistance of three spot gourami(Trichopodus trichopterus)for a period of 30 days.Methods:During this study,experimental fish were fed with supplemented diets.Bacillus probiotics with concentrations of 1×10^(4)to 4×10^(4)CFU/g were administered to improve the growth performance and larval resistance to challenge tests containing acidic pH and basic pH,ammonia and salinity tests.Results:The addition of B.subtilis and B.circulance to the diet did not increase larval growth rate,but increased larval resistance against the challenge tests.Conclusions:The results of this study investigated the positive effects of B.subtilis and B.circulance on Trichopodus trichopterus resistance time to the challenge test.展开更多
文摘Objective:To evaluate the effects of four different concentrations of Bacillus subtilis(B.subtilis)and Bacillus circulance(B.circulance)(1×10^(4),2×10^(4),3×10^(4)and 4×10^(4)CFU/g)on growth and resistance of three spot gourami(Trichopodus trichopterus)for a period of 30 days.Methods:During this study,experimental fish were fed with supplemented diets.Bacillus probiotics with concentrations of 1×10^(4)to 4×10^(4)CFU/g were administered to improve the growth performance and larval resistance to challenge tests containing acidic pH and basic pH,ammonia and salinity tests.Results:The addition of B.subtilis and B.circulance to the diet did not increase larval growth rate,but increased larval resistance against the challenge tests.Conclusions:The results of this study investigated the positive effects of B.subtilis and B.circulance on Trichopodus trichopterus resistance time to the challenge test.
