Wahyu Prihtiyantoro
Laboratorium Patologi Klinik Fakultas Kedokteran Hewan Universitas Gadjah Mada, Yogyakarta

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PREVALENSI STRAIN AVIAN PATHOGENIC ESCHERICHIA COLI (APEC) PENYEBAB KOLIBASILOSIS PADA BURUNG PUYUH Prihtiyantoro, Wahyu; Khusnan, Khusnan; Slipranata, Mitra; Rosyidi, Imron
Jurnal Sain Veteriner Vol 37, No 1 (2019): Juni
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (902.827 KB) | DOI: 10.22146/jsv.48520

Abstract

Avian Pathogenic Escherichia coli (APEC) is a pathogen that causes colibacillosis in poultry, including salpingitis, omphalitis, cellulitis, swollen head syndrome, coligranuloma yolk sac inflammation, and air sacs inflammation. APEC is a zoonotic strain which spread through raw meat and processed meat products of animals and birds. In this research, the isolation and identification of Escherichia coli were done by using selective media MacConkey, Kligger Iron Agar, and Gram staining. Polymerase chain reaction (PCR) was used to analyse genetopically to detect 16SrRNA genes, vt1 genes, and vt2 genes. Thirty one (55,36%) isolates of 56 specimens collected from quail were detected as Escherichia coli. The detection of APEC strains towards 31 Escherichia coli isolates were done by using polymerase chain reaction (PCR) with vt1 and vt2 specific primer. The results showed that 32,26% (10/31) was APEC strains and 67.74% was non-APEC strains. From 10 isolates, 90% had vt1 gene and 10% had vt2 gene. Escherichia coli isolates were found in eyes (32,26%), infraorbital sinus fluid (32,26%), nasal fluid (16,20%), also in lungs, air sacs, ascites, and heart for 3,2% each. The isolates could not be found in the specimens from the skull. As a zoonotic agent, the isolates have an impact on human health. 
KARAKTERISASI FAKTOR VIRULENSI Escherichia coli PATOGEN ZOONOTIK (O157:H7) ISOLAT ASAL TINJA SAPI POTONG CHARACTERIZATION OF Escherichia coli VIRULENCE FACTORS OF ZOONOTIC PATHOGENS (O157:H7) ISOLATE OF FECAL CATTLE Prihtiyantoro, Wahyu; Hartatik, Hartatik; Khusnan, Khusnan; Slipranata, Mitra; Aziz, Fatkhanudin
Agros Journal of Agriculture Science Vol 16, No 2: Edisi Juli 2014
Publisher : Faculty of Agriculture, Janabadra University

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Abstract

Kemampuan hemaglutinasi, keberadan hemolisin dan kekebalan terhadap antibiotik merupakan faktor virulensi yang penting pada Escherichia coli. Penelitian ini bertujuan melakukan karakterisasi faktor virulensi terhadap 9 (sembilan) E. coli isolat sapi potong yang terdiri 5 (lima) isolat berasal dari tinja dan 4 (empat) isolat berasal dari pupuk kandang. Duapuluh dua persen isolat mampu menggumpalkan eritrosit dan 100 persen isolat tidak memiliki hemolisin, 4 isolat asal tinja positif sebagai patogen zoonotik (O157:H7). Kekebalan isolat oleh eritromisin, metisilin, penisilin, tetrasiklin dan gentamisin  masing-masing 66,7 persen, 66,7 persen, 66,7 persen, 16,7 persen dan 0 persen. Resistensi hanya terjadi pada isolat asal tinja sedangkan isolat asal pupuk kandang masih sensitive terhadap antibiotika-antibiotika tersebut. Hemagglutination ability, the existence of hemolysin and antibiotic resistance is an important virulence factor in Escherichia coli. This study aimed to characterize the virulence factors of the nine (9) E. coli isolates beef cattle comprising five (5) isolates from feces and 4 (four) isolates from manure. Twenty-two percent of isolates were able to aglutinate erythrocytes and 100 percent of isolates did not have hemolysin. Immunity isolates by erythromycin, methicillin, penicillin, tetracycline and gentamicin respectively 66.7 percent, 66.7 percent, 66.7 percent, 16.7 percent and 0 percent. Resistance occurs only at the fecal isolates while isolate of manure is still sensitive to the antibiotics
KEMAMPUAN ADHESI Escherichia coli HEMAGLUTINASI DAN SMAC POSITIF ISOLAT SAPI POTONG PADA SEL EPITEL BUKALIS SECARA IN VITRO Prihtiyantoro, Wahyu; Hartatik, Hartatik; Khusnan, Khusnan
Agros Journal of Agriculture Science Vol 18, No 2: Edisi Juli 2016
Publisher : Faculty of Agriculture, Janabadra University

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Abstract

Adhesi bakteri pada permukaan sel epitel inang merupakan awal dari proses infeksi. Bakteri yang mempunyai faktor-faktor virulensi  dan faktor adhesin lebih mudah beradhesi pada sel epitel. Penelitian ini bertujuan untuk mengetahui kemampuan adhesi isolat-isolat Escherichia coli yang memiliki hemaglutinin dan strain Escherichia coli zoonotik pathogenic (VTEC). Isolat-isolat yang memiliki hemaglutinin dan  strain VTEC memiliki kemampuan adhesi yang lebih tinggi dibandingkan dengan isolat-isolat yang tidak memiliki hemaglutinin dan strain non VTEC.
KARAKTERISASI FAKTOR-FAKTOR VIRULENSI STAPHYLOCOCCUS AUREUS ASAL SUSU KAMBING PERANAKAN ETTAWA SECARA FENOTIP DAN GENOTIP Khusnan, Khusnan; Prihtiyantoro, Wahyu; Hartatik, Hartatik; Slipranata, Mitra
Jurnal Sain Veteriner Vol 34, No 1 (2016): Juni
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.206 KB) | DOI: 10.22146/jsv.22825

Abstract

Staphylococcus aureus is a major cause of mastitis in large or small ruminants, and often manifested by subclinical mastitis in Peranakan Ettawa (PE) goats. Staphylococcus aureus in human can cause food borne disease. The research aimed to characterize the virulence factors of Staphylococcus aureus isolated from milk PE goats, phenotypic- and genotypically. Phenotypically characterization were determined through the pigmen assay as well as hydrophobicity, haemolysin, and hemaglutinin reaction. Polymerase chain reaction (PCR) analysis was used to detect 4 virulen genes including coa, clf, fnbA, and fnbB genes. The results of research showed that Staphylococcus aureus abled to produce white pigmen (35,7%), yellow pigmen g (57,1%), andorange pigmen (7,2%). Staphylococcus aureus showed ?-hemolysis zone (35,7%), ?-hemolysis (35,7%), dan ?-hemolysis (28,9%). Hydrophobicytic test revealed 14,3% Staphylococcus aureus isolates were hydrophobe and85,7% hydrophil. Staphylococcus aureus (85,7%) isolates abled to aglutinated sheep blood cells. Based on genotypic analysis of Staphylococcus aureus could be detected coa gene (92,8%), clf gene (64,3%), fnbA gene (78,6%), and fnbB gene (64,3%). Based on the phenotypic and genotypic characters, it can be concluded that Staphylococcus aureus are virulent strains. This information can be used as the basis for control mastitis in PE goats