E-ISSN 2536-9520 | ISSN 1110-2047
 

Original Article 


Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia

Heba, Mohamed Mousa, . Abeer Mohamed El-Keredy, Mohamed Adel Rashed.

Abstract
The probiotic activity of Lactobacillus acidophilus bacteria as a dietary supplement was estimated by its effect on the immune response of Nile tilapia (Oreochromis niloticus) and its protective effect against challenge infections The present study predestined the effects of different Lactobacillus acidophilus dietary levels as feed supplement on growth performance, biochemical parameters, antioxidant activity and protection of Oreochromis niloticus against Enterococcus faecalis that previously isolated from cultured Oreochromis niloticus from Kafr Elsheikh Governorate fish farms that identified by biochemical tests and API20 E .Six types of bacteria were found, Enterococcus faecalis by 25%, Aeromonas hydrophilla by 20.9%, Pseudomonas.auriginousa. by 18.6% Staphylococcus aureus20..9%., Escherichia coli by11.6% and proteus vulgaris by 2.3% were isolated from 60 apparently healthy and naturally infected Oreochromis niloticus fish collected from Kafr El Sheikh Governorate fish farms . Fish were allotted into 5 groups, 1st and 2nd group fed on basal diet and 3rd ,4th and 5th fed on basal diet supplemented by different levels of dietary Lactobacillus acidophilus 1.5 108, 3 108 and 6 108 CFU /g respectively for 10 weeks. Our results showed that dietary administration of different levels of L. acidophilus improved weight gain rate, relative growth rate, average body weight and feed conversion ratio compared to fish fed unsupplemented diet. Also showed the superior results in biochemical parameters (significant increase (P < 0.05) in lysosomal activity, bactericidal activity, WBCs, antioxidant enzymes activities and significant decrease (P < 0.05) in cholesterol, cortisol and glucose and the appropriate inclusion is 6 108 CFU /g. It could be concluded that using Lactobacillus acidophilus good due to their high effective growth promoting, antibacterial and positive impact on innate immunity and antioxidant enzymes activities and had hypocholesteremic and hypoglycemic effect. This study highly recommends the use of Lactobacillus acidophilus as therapeutic agents in dealing with Enterococcus faecalis infection in fish culture. On our study Lactobacillus acidophilus can act as probiotics to improve immune responses ,growth, and fish welfare.

Key words: : Lactobacillus Acidophillus, growth performance, immune status, disease resistance, Nile Tilapia. : Lactobacillus Acidophillus, growth performance, immune status, disease resistance, Nile Tilapia.


 
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How to Cite this Article
Pubmed Style

, Mousa M, .AME, Rashed MA. Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. AJVS. 2021; 70(2): 15-28. doi:10.5455/ajvs.83913


Web Style

, Mousa M, .AME, Rashed MA. Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. http://www.alexjvs.com/?mno=83913 [Access: September 11, 2021]. doi:10.5455/ajvs.83913


AMA (American Medical Association) Style

, Mousa M, .AME, Rashed MA. Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. AJVS. 2021; 70(2): 15-28. doi:10.5455/ajvs.83913



Vancouver/ICMJE Style

, Mousa M, .AME, Rashed MA. Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. AJVS. (2021), [cited September 11, 2021]; 70(2): 15-28. doi:10.5455/ajvs.83913



Harvard Style

, Mousa, . M., , . .. A. M. E. & Rashed, . M. A. (2021) Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. AJVS, 70 (2), 15-28. doi:10.5455/ajvs.83913



Turabian Style

, Mohamed Mousa, . Abeer Mohamed El-Keredy, and Mohamed Adel Rashed. 2021. Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. Alexandria Journal of Veterinary Sciences, 70 (2), 15-28. doi:10.5455/ajvs.83913



Chicago Style

, Mohamed Mousa, . Abeer Mohamed El-Keredy, and Mohamed Adel Rashed. "Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia." Alexandria Journal of Veterinary Sciences 70 (2021), 15-28. doi:10.5455/ajvs.83913



MLA (The Modern Language Association) Style

, Mohamed Mousa, . Abeer Mohamed El-Keredy, and Mohamed Adel Rashed. "Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia." Alexandria Journal of Veterinary Sciences 70.2 (2021), 15-28. Print. doi:10.5455/ajvs.83913



APA (American Psychological Association) Style

, Mousa, . M., , . .. A. M. E. & Rashed, . M. A. (2021) Using Lactobacillus Acidophilus in Fish Feed to Improve Disease Resistance and Immune Status of Cultured Nile Tilapia. Alexandria Journal of Veterinary Sciences, 70 (2), 15-28. doi:10.5455/ajvs.83913





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