Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe

The spread of pathogenic bacteria from food production processes has become a problem worldwide. Abattoir effluents are potential carriers of resistant pathogenic bacteria and could be contributing to the global spread of these strains in the environments. We investigated the prevalence and antimicr...

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Autores principales:	Claudious Gufe, Melissa Nothabo Ndlovu, Zwelabo Sibanda, Zakio Makuvara, Jerikias Marumure
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Abattoir Effluent Zoonotic bacteria Multi drug-resistant Antibiotics Science Q
Acceso en línea:	https://doaj.org/article/f6595765b60241b6b221045ea5f28786
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spelling	oai:doaj.org-article:f6595765b60241b6b221045ea5f287862021-11-28T04:36:06ZPrevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe2468-227610.1016/j.sciaf.2021.e01059https://doaj.org/article/f6595765b60241b6b221045ea5f287862021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2468227621003604https://doaj.org/toc/2468-2276The spread of pathogenic bacteria from food production processes has become a problem worldwide. Abattoir effluents are potential carriers of resistant pathogenic bacteria and could be contributing to the global spread of these strains in the environments. We investigated the prevalence and antimicrobial profiles of bacteria isolated from government (Abattoir 1) and private owned (Abattoir 2) abattoir effluents. A total of 300 effluent samples were collected from each abattoir. Total bacterial counts and antibiotic sensitivity profiles were determined. The total bacterial counts in effluents were high for both abattoirs, ranging from 7.83 to 5.81 log CFU/mL. Significant differences were observed (p < 0.05) between bacterial counts of abattoir 1 and 2 at all sampling sites A, B and C. However, bacterial counts for Abattoir 1 were significantly higher than those for Abattoir 2 at sampling sites A and B and on the contrary total bacterial counts for Abattoir 1 were significantly lower at sampling site C. Sampling site A had the most bacteria (average: 7.55 log CFU/mL) while site C had the least bacteria (average: 6.32 log CFU/mL), suggesting that the processing could lower the discharged effluent's bacterial counts. Fifteen different potentially pathogenic bacteria were isolated from the effluent. Escherichia coli, Bacillus spp, Streptococcus pyogenes, Citrobacter freundii, Citrobacter spp, Klebsiella aerogenes, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis, Salmonella spp, Staphylococcus aureus, Staphylococcus coagulase negative, S. enteritidis, Staphylococcus epidermidis and Staphylococcus intermedius. E. coli (23.33%) and Bacillus species (21.85%) were the most prevalent and Staphylococcus intermedius (1.30%) the least prevalent. Most bacterial isolates (58.71%) were highly resistant to antibiotics tested and this could be very dangerous if the effluent is released into the environment without treatment. Therefore, there is a need to evaluate current environmental, veterinary, and public health policies to monitor and produce safe effluents.Claudious GufeMelissa Nothabo NdlovuZwelabo SibandaZakio MakuvaraJerikias MarumureElsevierarticleAbattoirEffluentZoonotic bacteriaMulti drug-resistantAntibioticsScienceQENScientific African, Vol 14, Iss , Pp e01059- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Abattoir Effluent Zoonotic bacteria Multi drug-resistant Antibiotics Science Q
spellingShingle	Abattoir Effluent Zoonotic bacteria Multi drug-resistant Antibiotics Science Q Claudious Gufe Melissa Nothabo Ndlovu Zwelabo Sibanda Zakio Makuvara Jerikias Marumure Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe
description	The spread of pathogenic bacteria from food production processes has become a problem worldwide. Abattoir effluents are potential carriers of resistant pathogenic bacteria and could be contributing to the global spread of these strains in the environments. We investigated the prevalence and antimicrobial profiles of bacteria isolated from government (Abattoir 1) and private owned (Abattoir 2) abattoir effluents. A total of 300 effluent samples were collected from each abattoir. Total bacterial counts and antibiotic sensitivity profiles were determined. The total bacterial counts in effluents were high for both abattoirs, ranging from 7.83 to 5.81 log CFU/mL. Significant differences were observed (p < 0.05) between bacterial counts of abattoir 1 and 2 at all sampling sites A, B and C. However, bacterial counts for Abattoir 1 were significantly higher than those for Abattoir 2 at sampling sites A and B and on the contrary total bacterial counts for Abattoir 1 were significantly lower at sampling site C. Sampling site A had the most bacteria (average: 7.55 log CFU/mL) while site C had the least bacteria (average: 6.32 log CFU/mL), suggesting that the processing could lower the discharged effluent's bacterial counts. Fifteen different potentially pathogenic bacteria were isolated from the effluent. Escherichia coli, Bacillus spp, Streptococcus pyogenes, Citrobacter freundii, Citrobacter spp, Klebsiella aerogenes, Klebsiella pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis, Salmonella spp, Staphylococcus aureus, Staphylococcus coagulase negative, S. enteritidis, Staphylococcus epidermidis and Staphylococcus intermedius. E. coli (23.33%) and Bacillus species (21.85%) were the most prevalent and Staphylococcus intermedius (1.30%) the least prevalent. Most bacterial isolates (58.71%) were highly resistant to antibiotics tested and this could be very dangerous if the effluent is released into the environment without treatment. Therefore, there is a need to evaluate current environmental, veterinary, and public health policies to monitor and produce safe effluents.
format	article
author	Claudious Gufe Melissa Nothabo Ndlovu Zwelabo Sibanda Zakio Makuvara Jerikias Marumure
author_facet	Claudious Gufe Melissa Nothabo Ndlovu Zwelabo Sibanda Zakio Makuvara Jerikias Marumure
author_sort	Claudious Gufe
title	Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe
title_short	Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe
title_full	Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe
title_fullStr	Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe
title_full_unstemmed	Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe
title_sort	prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in bulawayo, zimbabwe
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f6595765b60241b6b221045ea5f28786
work_keys_str_mv	AT claudiousgufe prevalenceandantimicrobialprofileofpotentiallypathogenicbacteriaisolatedfromabattoireffluentsinbulawayozimbabwe AT melissanothabondlovu prevalenceandantimicrobialprofileofpotentiallypathogenicbacteriaisolatedfromabattoireffluentsinbulawayozimbabwe AT zwelabosibanda prevalenceandantimicrobialprofileofpotentiallypathogenicbacteriaisolatedfromabattoireffluentsinbulawayozimbabwe AT zakiomakuvara prevalenceandantimicrobialprofileofpotentiallypathogenicbacteriaisolatedfromabattoireffluentsinbulawayozimbabwe AT jerikiasmarumure prevalenceandantimicrobialprofileofpotentiallypathogenicbacteriaisolatedfromabattoireffluentsinbulawayozimbabwe
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Prevalence and antimicrobial profile of potentially pathogenic bacteria isolated from abattoir effluents in Bulawayo, Zimbabwe

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