Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria

This study was conducted to isolate and detect methicillin-resistant staphylococci (MRS) in healthy broilers in Nsukka Southeast, Nigeria and determine the antibiogram of the isolates. Cloacal and skin swabs were collected from each of 101 randomly sampled broilers meant for slaughter. The samples w...

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Main Authors: Ifeoma Chinyere UGWU, Madubuike Umunna ANYANWU, Chidozie Clifford UGWU, Jude Chukwuemeka OKORO
Format: Article
Language:English
Published: Society of Land Measurements and Cadastre from Transylvania (SMTCT) 2015-03-01
Series:Notulae Scientia Biologicae
Online Access:http://www.notulaebiologicae.ro/index.php/nsb/article/view/9479
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author Ifeoma Chinyere UGWU
Madubuike Umunna ANYANWU
Chidozie Clifford UGWU
Jude Chukwuemeka OKORO
author_facet Ifeoma Chinyere UGWU
Madubuike Umunna ANYANWU
Chidozie Clifford UGWU
Jude Chukwuemeka OKORO
author_sort Ifeoma Chinyere UGWU
collection DOAJ
description This study was conducted to isolate and detect methicillin-resistant staphylococci (MRS) in healthy broilers in Nsukka Southeast, Nigeria and determine the antibiogram of the isolates. Cloacal and skin swabs were collected from each of 101 randomly sampled broilers meant for slaughter. The samples were processed for isolation and identification of methicillin-resistant Staphylococcus species, following standard methods. Confirmation of methicillin-resistance by the isolates was done using penicillin binding protein 2a (PBP2a) kit. Phenotypic resistance of the isolates to antimicrobial agents was determined using disc diffusion method. Out of 202 samples processed, 200 (99.01%) yielded positive growth of staphylococci on oxacillin-supplemented oxacillin-resistance staphylococcal agar base (ORSAB). A total of 200 methicillin-resistant staphylococcal isolates were obtained. Of these, 91 (45.5%) were identified as methicillin-resistant coagulase-positive Staphylococcus (MRCoPS), while 109 (54.5%) were identified as methicillin-resistant coagulase-negative Staphylococcus species (MRCoNS). Out of the 91 MRCoPS, 53 (58.2%) were identified as methicillin-resistant Staphylococcus aureus (MRSA). Resistance of the isolates was 99.5% to erythromycin and chloramphenicol, 100% to oxacillin, 76.5% to gentamicin, 96.5% to clindamycin, 92.5% to ciprofloxacin, 99% to sulphamethoxazole/trimethoprim and tetracycline, and 98.5% to streptomycin and cefoxitin. All the isolates were multidrug resistant. This study has shown that healthy broilers reared and slaughtered in Nsukka Southeast, Nigeria harbour multidrug-resistant MRS and thus serve as their reservoirs.
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spelling doaj.art-4b4f92d9149244c38cacba9bb3301cdd2022-12-22T02:15:10ZengSociety of Land Measurements and Cadastre from Transylvania (SMTCT)Notulae Scientia Biologicae2067-32052067-32642015-03-0171202510.15835/nsb7194798112Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, NigeriaIfeoma Chinyere UGWU0Madubuike Umunna ANYANWU1Chidozie Clifford UGWU2Jude Chukwuemeka OKORO3University of Nigeria, Nsukka, Faculty of Veterinary Medicine, Department of Veterinary Pathology and Microbiology, Enugu StateUniversity of Nigeria, Nsukka, Faculty of Veterinary Medicine, Department of Veterinary Pathology and Microbiology, Enugu StateFederal University of Technology, Department of Animal Science and Technology, OwerriUniversity of Nigeria, Nsukka, Faculty of Veterinary Medicine, Department of Veterinary Pathology and Microbiology, Enugu StateThis study was conducted to isolate and detect methicillin-resistant staphylococci (MRS) in healthy broilers in Nsukka Southeast, Nigeria and determine the antibiogram of the isolates. Cloacal and skin swabs were collected from each of 101 randomly sampled broilers meant for slaughter. The samples were processed for isolation and identification of methicillin-resistant Staphylococcus species, following standard methods. Confirmation of methicillin-resistance by the isolates was done using penicillin binding protein 2a (PBP2a) kit. Phenotypic resistance of the isolates to antimicrobial agents was determined using disc diffusion method. Out of 202 samples processed, 200 (99.01%) yielded positive growth of staphylococci on oxacillin-supplemented oxacillin-resistance staphylococcal agar base (ORSAB). A total of 200 methicillin-resistant staphylococcal isolates were obtained. Of these, 91 (45.5%) were identified as methicillin-resistant coagulase-positive Staphylococcus (MRCoPS), while 109 (54.5%) were identified as methicillin-resistant coagulase-negative Staphylococcus species (MRCoNS). Out of the 91 MRCoPS, 53 (58.2%) were identified as methicillin-resistant Staphylococcus aureus (MRSA). Resistance of the isolates was 99.5% to erythromycin and chloramphenicol, 100% to oxacillin, 76.5% to gentamicin, 96.5% to clindamycin, 92.5% to ciprofloxacin, 99% to sulphamethoxazole/trimethoprim and tetracycline, and 98.5% to streptomycin and cefoxitin. All the isolates were multidrug resistant. This study has shown that healthy broilers reared and slaughtered in Nsukka Southeast, Nigeria harbour multidrug-resistant MRS and thus serve as their reservoirs.http://www.notulaebiologicae.ro/index.php/nsb/article/view/9479
spellingShingle Ifeoma Chinyere UGWU
Madubuike Umunna ANYANWU
Chidozie Clifford UGWU
Jude Chukwuemeka OKORO
Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria
Notulae Scientia Biologicae
title Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria
title_full Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria
title_fullStr Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria
title_full_unstemmed Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria
title_short Isolation and Detection of Methicillin-Resistant Staphylococci in Healthy Broilers in Nsukka Southeast, Nigeria
title_sort isolation and detection of methicillin resistant staphylococci in healthy broilers in nsukka southeast nigeria
url http://www.notulaebiologicae.ro/index.php/nsb/article/view/9479
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