Effect of commercial probiotics (Bacillus subtilis and Saccharomyces cerevisiae) on growth performance, body composition, hematology parameters, and disease resistance against Streptococcus agalactiae in tambaqui (Colossoma macropomum)

2017 ◽  
Vol 25 (6) ◽  
pp. 2035-2045 ◽  
Author(s):  
Alison Eduardo Melo da Paixão ◽  
Jéssica Cerqueira dos Santos ◽  
Mariana Sampaio Pinto ◽  
Denise Soledade Peixoto Pereira ◽  
Carlos Eduardo Crispim de Oliveira Ramos ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Body Composition ◽  
Bacillus Subtilis ◽  
Disease Resistance ◽  
Growth Performance ◽  
Streptococcus Agalactiae ◽  
Colossoma Macropomum ◽  
Commercial Probiotics ◽  
Hematology Parameters

The Optimized Inclusion Level of Bacillus Subtilis Fermented Azolla Pinnata In Nile Tilapia (Oreochromis Niloticus) Diets: Immunity, Antioxidative Status, Intestinal Digestive Enzymes and Histomorphometry, And Disease Resistance

2022 ◽  
Author(s):  
Taha Ismail ◽  
Elsayed Hegazi ◽  
Eldsokey Nassef ◽  
Ola A. Habotta ◽  
Mahmoud S. Gewaily
Keyword(s):  
Bacillus Subtilis ◽  
Disease Resistance ◽  
Growth Performance ◽  
Digestive Enzymes ◽  
Nile Tilapia ◽  
Activity Level ◽  
Control Group ◽  
Antioxidative Status ◽  
Nonspecific Immunity ◽  
Inclusion Level

Abstract A 95-day feeding trial was conducted to evaluate the outcomes of feeding Bacillus subtilis fermented Azolla (BSFA) on nonspecific immunity, antioxidative status, intestinal digestive enzymes and histomorphometry, and disease resistance in the Nile tilapia. We formulated five isonitrogenous and isocaloric experimental diets to incorporate BSFA at (0%, 15%, 30%, 45%, 60%). The growth performance parameters (FBW, BWG, SGR, PER and FCR) revealed a significant increase in the BSFA30 tilapia group compared to the control group followed by BSFA45 (P < 0.05). The BSFA30 group exhibited the highest nonspecific immunity parameters (lysozyme activity, phagocytic index and phagocytic activity) compared to other groups (P < 0.05). SOD and GPx reported the highest values in the BSFA60 group. Nile tilapia carcass composition was not influenced by BSFA inclusion level (P ˃ 0.05). Interestingly, Nile tilapia fed with BSFA15 diet exhibited the highest protease activity level (P ˂ 0.05), while those fed on BSFA30 documented the highest amylase activity. Intestinal histomorphology was significantly enhanced with the gradual increase of administrated BSFA. Tilapia disease resistance against A. septicemia, BSFA significantly diminished the cumulative mortality compared to the control group. To sum up, BSFA was more effective in improving the growth performance and immunity of Nile tilapia.

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