Assessment of antimicrobial usage and antimicrobial residues in broiler chickens in Morogoro Municipality, Tanzania.
Assessment of antimicrobial usage and antimicrobial residues in broiler chickens in Morogoro Municipality, Tanzania.
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DOI：
10.3923/pjn.2009.203.207
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发表时间：
2009-01-01
期刊：
影响因子：
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通讯作者：
Mdegela, R. H.
中科院分区：
文献类型：
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作者：
Nonga, H. E.;Mariki, M.;Mdegela, R. H.
2007年1月至2月在坦桑尼亚Morogoro进行的一项横断面研究中确定了肉鸡肉中抗菌剂残留的存在。对20名小规模肉鸡养殖户进行了访谈，了解他们使用的抗菌剂类型及其对停药期的认识。此外，70个肉鸡肝脏样品的定性抗菌残留分析使用两个平行的测试：琼脂扩散和Delvotest SP法。90%的受访者经常使用四环素，氨丙沙星，磺胺类药物，甲氧苄啶，新霉素和氟甲喹他们的鸡。90%的被调查者了解停药期知识。然而，95%的农民在停药期前屠宰了他们的鸡，因为他们害怕损失，并且不知道抗生素残留对人体的影响。实验室结果显示，70%（n=14）的农场对抗菌剂残留呈阳性。这表明家禽养殖户普遍滥用抗菌剂，反映出没有执行停药时间。需要强调的是，必须对鸡肉中抗菌剂的使用实行更严格的管制，并在销售前对鸡肉进行残留物检查。然而，家禽养殖户需要接受教育，了解使用含有抗菌剂残留物的食品可能产生的影响。
Presence of antimicrobial residues in broiler meat was determined in a cross-sectional study conducted in Morogoro, Tanzania between January and February, 2007. Twenty smallholder broiler chicken farmers were interviewed on the types of antimicrobials used and their awareness on withdrawal period. In addition, 70 broiler chicken liver samples were collected for qualitative antimicrobial residues analysis by use of two parallel tests; agar well diffusion and Delvotest SP assay. Ninety percent of the respondents frequently used tetracycline, amprolium, sulphonamides, trimethoprim, neomycine and flumequine to their chickens. Ninety percent of the respondents had knowledge on antimicrobial withdrawal period. However, 95% of farmers slaughtered their chicken before withdrawal period because were afraid of losses and were unaware of the effects of antimicrobial residues in humans. Laboratory results indicated that 70% (n=14) of the farms were positive to antimicrobial residues. This shows a widespread misuse of antimicrobials by poultry farmers and reflecting lack of implementation of withdrawal times. It is stressed that stricter regulation for the use of antimicrobials in chicken and inspection of chicken for residues prior to marketing. However, poultry farmers need to be educated on the possible effects associated with use of food with antimicrobial residues.