Oxytetracycline and penicillin-G residues in cattle slaughtered in south-western Nigeria: Implications for livestock disease management and public health

Journal of the South African Veterinary Association

 
 
Field Value
 
Title Oxytetracycline and penicillin-G residues in cattle slaughtered in south-western Nigeria: Implications for livestock disease management and public health
 
Creator Adesokan, Hezekiah K. Agada, Charity A. Adetunji, Victoria O. Akanbi, Ibikunle M.
 
Subject — Cattle; Livestock marketers; Nigeria; Public Health; Veterinary drug residues
Description After the discovery of indiscriminate antibiotic use in ready-for-slaughter cattle in south-western Nigeria, 90 tissue samples from randomly selected slaughtered cattle were evaluated for oxytetracycline and penicillin-G residues using high performance liquid chromatography and the data analysed by one-way Analysis of variance (ANOVA). The findings revealed residues of oxytetracycline (kidney: 9.47 µ/kg ± 3.24 µ/kg; liver: 12.73 µ/kg ± 4.39 µ/kg; muscle: 16.17 µ/kg ± 5.52 µ/kg) and penicillin-G (kidney: 6.27 µ/kg ± 2.46 µ/kg; liver: 8.5 µ/kg ± 2.80 µ/kg; muscle: 11.67 µ/kg ± 2.94 µ/kg) in all tissues screened. Significantly high levels (oxytetracycline: F = 16.77; penicillin-G: F = 29.38) were, however, found in muscles, followed by liver and then kidney – findings confirming recent antibiotic administration to the animals before slaughter. The dietary intakes through the tissues screened were 0.024% (oxytetracycline) and 0.017% (penicillin-G) of the acceptable daily intake (ADI). Although the concentrations in the tissues screened were below the maximum residue limits despite recent administration of these antibiotics before slaughter, the lower concentrations are suggestive of the probable low dosages often administered by those involved in indiscriminate use of antibiotics. This therefore raises serious concerns for the livestock industry as well as human health, given the resultant emergence and spread of resistant strains of bacterial pathogens that could ensue from prolonged use of low dosages of antibiotics. Additionally, the lower concentrations of the daily intakes notwithstanding, the plausible exposure to these antibiotics from other food sources is a cause for concern. Since antimicrobial misuse and its consequent effects are not just a problem limited to Nigeria but also a concern in sub-Saharan Africa, the need for national and international stakeholder intervention is emphasised.
 
Publisher AOSIS
 
Contributor
Date 2013-07-11
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format text/html application/octet-stream text/xml application/pdf
Identifier 10.4102/jsava.v84i1.945
 
Source Journal of the South African Veterinary Association; Vol 84, No 1 (2013); 5 pages 2224-9435 1019-9128
 
Language eng
 
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https://jsava.co.za/index.php/jsava/article/view/945/1201 https://jsava.co.za/index.php/jsava/article/view/945/1202 https://jsava.co.za/index.php/jsava/article/view/945/1203 https://jsava.co.za/index.php/jsava/article/view/945/1200
 
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Rights Copyright (c) 2013 Hezekiah K. Adesokan, Charity A. Agada, Victoria O. Adetunji, Ibikunle M. Akanbi https://creativecommons.org/licenses/by/4.0
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