Evaluation of Bacillus amyloliquefaciens on the growth performance, intestinal morphology, hematology and body composition of Nile tilapia, Oreochromis niloticus

Improvement of immunity and disease resistance in the Nile tilapia, Oreochromis niloticus, by dietary supplementation with Bacillus amyloliquefaciens

“…In the present study, B. amyloliquefaciens-supplemented diets succeeded in improving certain immunological parameters in tilapia. These results might explain the beneficial effects of B. amyloliquefaciens on growth performance in tilapia [23].…”

“…In the present study, unlike serum lysozyme and nitric oxide, serum bactericidal and phagocytic activities were observed to require higher levels of probiotics for improved immune parameters after two weeks. Our previous study clarified that initially higher doses of B. amyloliquefaciens should be applied to enhance tilapia growth and that the continuation of high-dose administration is required to achieve immunostimulation [23]. Serum bactericidal activities are activated by Bacillus subtilis after one and two months in tilapia, whereas faster activation after only 15 d has been reported in L. rohita and the tinfoil barb, Barbonymus schwanenfeldii [17,40,45].…”

“…Additional factors, including colonization in the gut, attachment site, viability, stress factors and experimental and environmental conditions, might affect probiotic mechanisms [101e103]. In our previous study, the use of a combination of dietary beta-glucans (b-G) and mannan oligosaccharides (MOS) resulted in better performance in terms of growth rate, intestinal morphology, immune response and disease resistance, than the use of B. amyloliquefaciens tilapia under the same circumstances [23,104]. Similarly, Ngamkala et al [105] reported that glucan elicited better immunostimulation and resistance against A. hydrophila in tilapia than the probiotic L. rhamnosus.…”

Dietary Administered Bacillus sp. PP9 Enhances Growth, Nutrition and Immunity in Cirrhinus mrigala (Hamilton)

“…In aquaculture, probiotics have captured special attention for its efficacious function for supplementary synthesis of digestive enzymes [20], and improvement in growth performance of the farmed species [21,22]. Bacillus have been widely used as putative probiotics for its beneficial nutritional impact, antagonism against microbial pathogens and easy supplementation [23,24], as reported for larval development of Gilthead sea bream (Sparus aurata, L.) by Arıg et al [25].…”

The composition of the microbial community associated with Macrobrachium rosenbergii zoeae varies throughout larval development

“…Bacillus is an extremely diverse group of bacteria that includes both the causative agent of anthrax ( Bacillus anthracis ) and several species that synthesize important antibiotics. In aquaculture, most Bacillus bacteria reported have been probiotic, including Bacillus amyloliquefaciens (Reda & Selim, ; Selim & Reda, ), Bacillus subtilis (Aly, Ahmed, Ghareeb, & Mohamed, ) and Bacillus pumilus (Aly, Mohamed, & John, ; Hong et al, ; Wang et al, ). The use of probiotic bacteria is regarded as a promising strategy and their use in aquaculture has been widely accepted, as is evident from the number of research studies published over the last ten years (Balcázar et al, ; Merrifield et al, ; Swapnap et al, ; Wang, Li, & Lin, ).…”