共 14 条
Identification of lactobacilli isolated from the cloaca and vagina of laying hens and characterization for potential use as probiotics to control Salmonella Enteritidis
被引:0
|作者:
Van Coillie, E.
[1
,4
]
Goris, J.
[1
]
Cleenwerck, I.
[2
]
Grijspeerdt, K.
[1
]
Botteldoorn, N.
[1
]
Van Immerseel, F.
[3
]
De Buck, J.
[3
]
Vancanneyt, M.
[2
]
Swings, J.
[2
]
Herman, L.
[1
]
Heyndrickx, M.
[1
]
机构:
[1] Flemish Government, Institute for Agricultural and Fisheries Research, Unit Technology and Food, Melle, Belgium
[2] BCCM/LMG Bacteria Collection, Laboratory of Microbiology, Ghent University, Ghent, Belgium
[3] Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
[4] Institute for Agricultural and Fisheries Research (ILVO), Unit Technology and Food, Brusselsesteenweg 370, B-9090 Melle, Belgium
来源:
Journal of Applied Microbiology
|
2007年
/
102卷
/
04期
关键词:
Aims: To select Lactobacillus strains from laying hens for potential use as probiotic to control Salmonella Enteritidis infection. Methods and Results: One hundred and eighty-six lactobacilli were isolated from the cloaca and vagina of laying hens;
and identified at the species level by a polyphasic taxonomic approach. All isolates belonged to the Lactobacillus acidophilus;
Lactobacillus reuteri or Lactobacillus salivarius phylogenetic groups;
with the L. reuteri group being the most predominant group. Based on genetic diversity;
about 50 representative strains were selected and tested for in vitro properties that could be predictive for probiotic activity in laying hens. Salmonella inhibition was shown to be species dependent;
and correlated to some extent with the production of lactic acid. A selection of strains was evaluated in a S. Enteritidis challenge experiment. Two strains;
L. reuteri R-17485 and Lactobacillus johnsonii R-17504 significantly decreased the colonization of chicks by S. Enteritidis in caeca;
liver and spleen. Conclusions: Lactobacilli isolated from laying hens were observed to inhibit Salmonella growth in vitro;
most probably through production of lactic acid;
and to decrease in vivo the S. Enteritidis colonization of chicks. Significance and Impact of the Study: The data demonstrate that Lactobacillus isolates from laying hens may have probiotic potential in reducing S. Enteritidis infection;
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页码:1095 / 1106
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