Sains Malaysiana 54(9)(2025): 2161-2170

http://doi.org/10.17576/jsm-2025-5409-05

 

Kerintangan Antibiotik dan Pencapjarian DNA Salmonella Typhimurium Diasingkan daripada Pusat Sembelihan Ayam

(Antibiotic Resistance and DNA Fingerprinting Salmonella Typhimurium Isolated from Chicken Slaughter House)

 

AISHAH ELIAS1, SAHILAH ABD. MUTALIB2,*, SAFIYYAH SHAHIMI3, NURUL AQILAH
MOHD ZAINI1 & AHMAD AZUHAIRI ARIFFIN4

 

1Jabatan Sains Makanan, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
2Institut Islam Hadhari, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
3Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah,
Negeri Sembilan, Malaysia
4Jabatan Kesihatan Komuniti, Fakulti Perubatan dan Sains Kesihatan, Universiti Putra Malaysia,
43400 UPM Serdang, Selangor, Malaysia

 

Received: 17 January 2025/Accepted: 22 July 2025

 

Abstrak

Sebanyak 18 strain Salmonella Typhimurium telah diuji kerintangan antibiotik dan cap jari amplifikasi polimorfik DNA secara rawak (RAPD-PCR) dan cap jari elektroforesis gel medan denyut (PFGE). Semua strain S. Typhimurium telah dipencilkan daripada pusat penyembelihan ayam di Kajang, Malaysia pada bulan Februari, Mac dan Oktober 2020 disahkan dengan kaedah penjujukan. Semua pencilan rintang terhadap tiga atau lebih antibiotik yang diuji dengan tahap kerintangan paling tinggi mengikut turutan ditunjukkan terhadap eritromisin (94%), sefalotin (94%), tikarsilin (78%), seftriakson (72%), piperasilin (44%), kanamisin (17%) dan asid nalidiksik (11%). Strain S. Typhimurium didapati paling kurang kerintangan adalah terhadap siprofloksasin (6%). Genom DNA S. Typhimurium telah diuji dengan cap jari amplifikasi polimorfik asid deoksiribonukleik secara rawak tindak balas polimerase (RAPD-PCR) dan cap jari elektroforesis gel medan denyut (PFGE). RAPD-PCR menggunakan dua primer, NSCI dan NSCII, menunjukkan tiga kluster dan 10 pencilan tunggal dan lima kluster dan lapan pencilan tunggal pada tahap persamaan yang sama. Manakala analisis cap jari PFGE menggunakan XbaI dan AvrII menunjukkan lima kluster dan lapan pencilan tunggal dan empat kluster dan lapan pencilan tunggal pada tahap kesamaan 80% menggunakan Gel Compar II. Polimorfisme cap jari RAPD dan PFGE menunjukkan 18 jenis genom S. Typhimurium. Oleh itu, ia menunjukkan kerintangan antibiotik dan kepelbagaian genetik yang tinggi bagi pencilan S. Typhimurium dari pusat sembelihan yang dikaji.

 

Kata kunci: Pencapjarian; pusat sembelihan ayam; PFGE; RAPD-PCR; Salmonella Typhimurium

 

Abstract

Eighteen strains (n=18) of Salmonella Typhimurium were examine for antibiotic resistance, RAPD-PCR fingerprinting and PFGE fingerprinting. All S. Typhimurium strains were isolated from a chicken slaughterhouse in Kajang, Malaysia on February, March and October 2020 and confirmed by sequencing method. All isolates were resistant to three or more of the antibiotics tested, with the highest resistances were demonstrated towards erythromycin (94%), cephalothin (94%), ticarcillin (78%), ceftriaxone (72%), piperacillin (44%), kanamycin (17%) and nalidixic acid (11%), respectively. The antibiotic that experienced the least resistance was ciprofloxacin (6%). S. Typhimurium DNA genomes were examined for Random Amplified Polymorphic Deoxyribonucleic Acid-Polymerase Chain Reaction (RAPD-PCR) and Pulse Field Gel Electrophoresis (PFGE) fingerprinting. RAPD-PCR using two primers, NSCI and NSCII, showed three clusters and 10 single isolates, and five clusters and eight single isolates at a similar similarity level, respectively. While PFGE fingerprinting analysis using XbaI and AvrII showed five clusters and eight single isolates, and four clusters and eight single isolates at 80% similarity level using Gel Compar II, respectively. Polymorphism of RAPD and PFGE fingerprinting showed 18 genome types of S. Typhimurium. Thus, it indicated high antibiotic resistance and genetic diversity of S. Typhimurium isolated from the studied chicken slaughterhouse.

 

Keywords: Chicken slaughter house; fingerprinting; PFGE; RAPD-PCR; Salmonella Typhimurium

 

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*Corresponding author; email: sahilah@ukm.edu.my

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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