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Antibacterial Activity of Essential Oil of aeollanthus pubescenson Multidrug Resistant Strains of Salmonellaand Escherichia coliIsolated from Laying Hens Farming in Benin

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Advances in Microbiology 2019年第9期9卷 804-823页

作者： Aguidissou Oscar Nestor Boko Kadoeito Cyrille Sessou Philippe Yovo Mahudro Komagbe S.Gwladys Ayihou Yannick Alitonou Guy Alain Avlessi Felicien Farougou Souaï bou Sohounhloue Koko Codjo Dominique Unite de Recherche sur les Maladies Transmissibles Laboratoire de Recherche en Biologie AppliqueeEcole Polytechnique d’Abomey-CalaviUniversite Abomey-CalaviCotonouBenin Laboratoire d’etude et de Recherche en Chimie Appliquee Ecole Polytechnique d’Abomey-CalaviUniversite Abomey-CalaviCotonouBenin

Infections due to Escherichia coli and Salmonella are of the major constraints for the laying hen’s industry as they cause mortality and serious economic losses. The use of conventional antibiotics to control bacterial has shown limits because it allows multidrug-resistance. The main objective of this study was to assess the antibacterial activity of essential oil from aeollanthus pubescens on multidrug resistant strains of Salmonella and Escherichia coli isolated from laying hens faming in the department of Atlantique in Benin. Altogether, 11 strains of Salmonella and 16 strains of Escherichia coli have been isolated from 101 samples of different organs including liver, spleen, lung, feces and yolk according to standardized methods and their biochemical profile using API 20E gallery. Test of sensitivity was carried out on 11 antibiotics of six different families on identified strains in order to determine their resistance profile. A sensitivity test was carried out on multi-drug resistant strains with aeollanthus pubescens essential oil to determine their sensitivity with regard to this essential oil. The results showed that the majority of Salmonella strains presented resistance to Tetracyclines (72.7%) and Sulfonamides (63.6%) and all Escherichia coli strains are resistant to Sulfonamides (100%) followed by Tetracycline (93.75%) and Ampicillin (75%). aeollanthus pubescens essential oil was active on all the multi-drug resistant strains investigated with Minimal inhibitory concentration varying from 0.41 ± 0 mg/ml to 0.83 ± 0 mg/ml for Salmonella and from 0.41 ± 0 mg/ml to 1.66 ± 0 mg/ml for Escherichia coli (P Salmonella and the multi-drug resistant Escherichia coli investigated. Those results provide alternatives to control poultry bacterial pathologies in Republic of Benin. However, disease due to Escherichia coli and Salmonella must be taken more seriously and study on their resistance to antibiotic must be deepened as well.

关键词： Laying Hens Escherichia coli Salmonella Antibiore-sistance aeollanthus pubescens

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