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OJVRTM
Online Journal of Veterinary Research©
(Including Medical and
Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 29 (8): 487-498, 2025.
Probiotics in lactic acid bacteria from
chicken intestines
SUMMARY
Mojgani N, Torshizi M, Molae M., Probiotics
in lactic acid bacteria from chicken intestines Onl J Vet Res.,
29 (8) : 487-498, 2025. We excised 250 chicken intestines screened for Lactic acid bacteria
(LAB) by culture, morphology and biochemistry. We identified 75 isolates as LAB
for probiotic of which 3 were resistant to low pH and had high bile salts.
Based on biochemical reactions these strains were identified as, Lactobacillus acidophilus RNL26, L. fermentum RNL 44 and L. salivarrius RNL 49. These strains demonstrated
enhanced inhibitory activity against gram positive Clostridium perfringens, Staphylococcus aureus
and Listeria monocytogenes. L. fermentum RNL 44 inhibited gram negative bacteria; Salmonella enteritidis and S. typhimurium due to bacteriocin.
The antibacterial effect by L. acidophilus RNL26 and L. salivarrius RNL 49 was due probably to bacteriocin as neutralized catalase treated supernatant from
these strains retained antibacterial activity. These isolates exerted In vitro cholesterol removal, aggregation, co-aggregation, and
cell surface hydrophobicity.
Key Words: Lactic Acid Bacteria (LAB), Invitro,
Antimicrobial, Poultry, Probiotic potential.
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