Abstract
Importation of feeder cattle from farms constantly using antibiotics in feed could result in the occurrenceof antibiotic resistant bacteria. A study was therefore conducted to investigate the possible use antibioticsand the antibiotic resistance of commensal Salmonella sppagainst several antibiotics. Salmonella spp.bacteria (n=50)were isolated from 100 samples of feeder cattlesfaeces. Total of 50 Salmonella spp. isolateswere subjected for Salmonella spp. examination and the isolated Salmonella spp. was tested for theantibiotic resistance using 10 antibiotics (ampicillin, cephalotin, erythromycin, tetracycline, streptomycin,chloramphenicol, trimethoprim, trimethoprim-sulfamethoxazole, nalidixic acid, and enrofloxacin) usingdisk diffusion method on Muller-Hinton agar following Clinical and Laboratory Standards Institute (CLSI)guidelines for interpretation. The isolated Salmonella showed resistance towards erythromycin 98%,ampicillin 34%, streptomycin 22%, nalidixic acid 8%, cephalotin 6%, tetracycline 4%, and chloramphenicol2%. There was no resistance against enrofloxacin, trimethoprim, and trimethoprim-sulfamethoxazole. Salmonella spp. bacteria derived from imported feeder cattle which have been resistant to antibiotics arepotential for spreading the antibiotic resistant bacteria to other susceptible animals. Such bacteria canalsotransfer the antibiotic resistant gene to other bacteria in Indonesia which ould be a potential threatfor public and animal healths.
Highlights
Salah satu upaya pemerintah dalam meningkatkan produksi daging sapi di Indonesia adalah dengan melakukan importasi daging dan sapi bakalan
Importation of feeder cattle from farms constantly using antibiotics in feed could result in the occurrence of antibiotic resistant bacteria
Salmonella spp. bacteria (n=50)were isolated from 100 samples of feeder cattlesfaeces
Summary
Salmonella spp. bacteria derived from imported feeder cattle which have been resistant to antibiotics are potential for spreading the antibiotic resistant bacteria to other susceptible animals. Impor sapi tersebut berpotensi membawa agen-agen penyakit yang penting untuk diwaspadai salah satunya adalah adanya foodborne bakteri yang resisten terhadap beberapa jenis antibiotik. Bakteri Salmonella, Campylobacter, Enterococci, dan Escherichia coli merupakan contoh bakteri yang resisten terhadap antibiotik dan dapat mentransfer gen yang resisten tersebut ke bakteri lain yang terdapat pada hewan dan dapat menginfeksi manusia baik melalui rantai makanan atau kontak langsung Keberadaan Salmonella spp. yang resisten terhadap antibiotik tertentu dapat mentransfer gen resisten tersebut ke bakteri lain terutama yang tergolong dalam foodborne bakteri dan apabila menginfeksi manusia dapat menyebabkan kerugian bagi kesehatan manusia, di antaranya adalah kegagalan pengobatan dengan menggunakan antibiotik terhadap agen penyakit yang telah resisten. Penelitian ini bertujuan untuk menguji tingkat resistensi Salmonella spp. yang diisolasi dari feses sapi impor bakalan yang dilalulintaskan melalui pelabuhan Tanjung Priok, Jakarta terhadap beberapa antibiotik. Melalui penelitian ini diharapkan dapat memberikan informasi mengenai keberadaan Salmonella spp dan resistensinya terhadap antibiotik sehingga dapat digunakan untuk mencegah peluang penyebaran bakteri yang mengalami resistensi
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