Michael Haryadi Wibowo
Fakultas Kedokteran Hewan, Universitas Udayana, Bali

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IDENTIFIKASI SEROLOGIS VIRUS INFECTIOUS LARYNGOTRACHEITIS ISOLAT MANGESTONI FARM DENGAN UJI AGAR GEL PRESIPITASI DAN UJI NETRALISASI Wibowo, Michael Haryadi
Jurnal Sain Veteriner Vol 21, No 2 (2003)
Publisher : Fakultas Kedokteran Hewan

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Karakterisasi Hemaglutinin Streptococcus agalactiae dan Staphylococcus aureus Penyebab Mastitis Subklinis Pada Sapi Perah = Characterization of Haemagglutinin of Streptococcus agalactiae and Staphylococcus aureus on ... Tri Hastuti Wahyuni, Agnesia Endang; Wibawan, I Wayan Teguh; Wibowo, Michael Haryadi
Jurnal Sain Veteriner Vol 23, No 2 (2005)
Publisher : Fakultas Kedokteran Hewan

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Streptococcus agalactiae dan Staphylococcus aureus merupakan dua bakteri utama penyebab mastitis subklinis pada sapi perah di Indonesia. Pada mastitis subklinis kemampuan adesi mempunyai peran lebih penting dari pada kemampuan invasi. Hemaglutinin merupakan faktor yang berperan dalam proses adesi, sebagai langkah awal kolonisasi bakteri pada permukaan set epitel ambing. Tujuan dari penelitian ini adalah mengisolasi dan mengkarakterisasi hemaglutinin dari S. agalactiae dan S. aureu. Penentuan hemaglutinin S. agalactiae dan S. aureus dengan uji hemaglutinasi menggunakan eritrosit sapi perah 1%. Isolasi hemaglutinin dilakukan dengan afinitas kromatogarfi dan analisis dengan Sodium Dodecyl Sulphate-Polyacrilamide Gel Electrophoresis (SDS-PAGE). Hasil penelitian diketahui bahwa hemaglutinin S. agalactiae dan S. aureus dapat ditentukan dengan SDS-PAGE dengan berat molekul 28 kDa pada S. agalactiae dan 27 kDa pada S. aureus.
PERBANDINGAN TITER ANTIBODI AYAM BROILER YANG DIVAKSIN PADA UMUR 7 DAN 14 HARI MENGGUNAKAN VAKSIN AVIAN INFLUENZA HETEROLOG SUBTIPE H5N2 Susetyo, Ukon; Wibowo, Michael Haryadi
Jurnal Sain Veteriner Vol 26, No 2 (2008)
Publisher : Fakultas Kedokteran Hewan

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The aim of this study was to compare the titer antibody respons induced by different vaccination programusing heterologous avian influenza H5N2 subtype at day seven and 14 in broiler chicken. A number of 120broiler chickens was divided into three groups, each consisted of 40 birds and kept since day old chicken instandard maintenance facilities. Group one as the treatment group was vaccinated at 7 days of age usingheterologous vaccine H5N2 subtype. The second group was vaccinated at 14 days of age using the samevaccine. The control group, received no vaccination. A number of24 birds in each group were randomly chosenand bled via brachialis vein at day 14, 21 and 28 post vaccination, respectively. The antibody titer in the serawas measured using hemaglutination inhibition (HI) test with homologous antigen H5N2 subtype. Data wereanalysed using a split-plot design of analysis of variance of 0,05, significance level. The titer induced by vaccinationat day-7 were 1,54; 15,92 and 6,58 HI unit, respectively. Meanwhile in the second group the titer obtained were1,29; 7,38 and 15 HI unit respectively. Antibody of the control group was negativ. Further analysis indicated thatthere was significance different antibody titer induced by vaccination between treatment groups, but whencompared between group of treatment, the result showed po significance different.Keys words: avian influenza. broiler chicken, heterologous vaccine, and antibody titer
Perbandingan beberapa program vaksinasi penyakit newcastle pada ayam buras Wibowo, Michael Haryadi; Amanu, Surya
Jurnal Sain Veteriner Vol 28, No 1 (2010)
Publisher : Fakultas Kedokteran Hewan

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Isolasi dan Identifiicasi Serologis Virus Avian Influenza Dari Sampel Unggas Yang Diperoleh di D.I. Yogyakarta dan Jawa Tengah = Isolation and Serological Identification of Avian Influenza Virus From Poultry Sample ... Wibowo, Michael Haryadi; Asmara, Widya; Tabbu, Charles Rangga
Jurnal Sain Veteriner Vol 24, No 1 (2006)
Publisher : Fakultas Kedokteran Hewan

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Avian Influenza (AI) merupakan penyakit penting pada unggas, karena dapat menyebabkan kerugian ekonomi secara signifikan, dengan tingkat morbiditas dan mortalitas penyakit sangat tinggi. L,ebih dan itu potensi penularan penyakit AI dari hewan ke manusia, memberikan dampak ekonomi tersendiri. Beberapa kasus yang diduga sebagai AI banyak mewabah di beberapa daerah di Indonesia. Penyakit tersebut cukup membingungkan peternak dan sangat dikacaukan dengan penyakit Newcastle (ND) karena kedua penyakit mempunyai kemiripan karakter dan gejala klinis. Penelitian ini bertujuan untuk mengkonfirmasi apakah wabah penyakit tersebut disebabkan oleh virus AI atau virus ND. Sampel isolasi diambil dari paru atau trakhea, kemudian diproses lebih lanjut untuk diisolasi, dipropagasi secara in ovo menggunakan telur ayam berembrio umur 9 sampai 12 hari, spesific pathogen free atau telur yang setidaknya bebas antibodi terhadap virus AI. Teknik isolasi menurut standar prosedur Office International des Epizooties (01E) dan kemungkinan adanya pertumbuhan virus diuji terhadap kemampuan mengaglutinasi sel darah merah ayam atau hemaglutinasi (HA). Uji HA positif, mengindikasikan ada pertumbuhan virus ND atau virus AL Kedua jenis virus tersebut dapat dibedakan dengan uji hemaglutinasi inhibisi (HI) menggunakan serum anti dari masing-masing virus yang diuji. Berdasarkan hasil penelitian ini dapat diambil suatu kesimpulan bahwa beberapa sampel unggas, yaitu: ayam petelur, ayam broiler, ayam kampung, dan burung puyuh, yang di peroleh dari beberapa daerah di D.I. Yogyakarta dan Jawa Tengah dan secara klinis menunjukkan gejala tersifat maupun tidak tersifat AI, secara serologis dapat dikonfirmasi sebagai virus avian influenza sub-tipe 145Ni.
Isolasi dan Propagasi Agen Penyebab Penyakit dari Kasus Terdiagnosa Penyakit Infektious Laryngotracheitis (ILT) pada Telor Ayam Berembrio Wibowo, Michael Haryadi; Asmara, Widya
Jurnal Sain Veteriner Vol 20, No 2 (2002)
Publisher : Fakultas Kedokteran Hewan

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Comparation Protection Level of Newcastle Disease in Broiler Wibowo, Sarwo Edy; Asmara, Widya; Wibowo, Michael Haryadi; Sutrisno, Bambang
Jurnal Sain Veteriner Vol 31, No 1 (2013)
Publisher : Fakultas Kedokteran Hewan

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Newcastle Disease (ND) is both  respiratory and digestive diseases in poultry caused by avian paramyxovirus type 1 (APMV-1). Field data showedthat there were still many cases of Newcastle Disease faced by farmers despite of vaccination programs had been  doneroutinely. The aim of this research is to find out the effectiveness of  some routine ND vaccination program in broiler chiken challengedeither with viscerotropic velogenic Newcastle Disease (VVND) virus or virulent ND virus from field isolates. One hundred broiler chickens were divided into 4 groups of 25 each. In theGroup I,vaccination was carried out at day 1 with combination of ND-IB live vaccineand ND killed vaccine, and booster at day 18 with live ND vaccine, in the Group II, chickens were vaccinated with live ND-IB vaccine at day 1 and day 18 and  in the Group III, chickens  were vaccinated with live ND-IB vaccine at day 1 and vaccinated with ND live vaccine at day 18. Challenge test performed in twenty broiler chickens of each group with virulent ND that has chicken lethal dose fifty (CLD50) 4,8. Virus preparation 26 and then diluted to 10-4, to obtain dilution 10000. Twenty chicken from each group were then given 0.5 cc dilution of 6 HA virulent virus at 28 days of old. Six challenged chicken from group I showed ND clinical symptom and were eventually death.  This mean that the vaccine program provided 70% protection. Whereas all challenged chicken from the Groups II and III were sick, then died meaning that these vaccination programs did not give any protection at all. Bsed on the present study, it is concluded that the administration of ND live vaccine priming along with ND killed vaccine is needed to improve the protection against velogenic NDV.    
PREVALENSI KOLIBASILOSIS PADA AYAM BROILER YANG DIINFEKSI Escherichia coli DENGAN PEMBERIAN BIOADITIF, PROBIOTIK, DAN ANTIBIOTIK Suryani, Ade Erma; Karimy, Mohammad Faiz; Istiqomah, Lusty; Sofyan, Ahmad; Herdian, Hendra; Wibowo, Michael Haryadi
Widyariset Vol 17, No 2 (2014): Widyariset
Publisher : LIPI-Press

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The purpose of this research was to study the efficacy of bio-additive (a mixture of Lumbricus rubellus meal extract, Morinda citrifolia leaf extract and lactic acid bacteria ), probiotics, and antibiotics on the prevalence co- libacillosis and healthy status of broiler that infected by E. coli strain Avian Pathogenic Escherichia coli (APEC). A total of 140 DOC were distribute randomly into 20 units of cage, each filled with 7 chickens were arranged in a completely randomized desig . Twenty cages were divided into 5 group , each treatment consisted of 4 replicates. The treatment group consisted of treatment A = infection of E. coli positive control), B = infection of E. coli + bio- additiv , C = infection of E. coli + probiotic , D = infection of E. coli + antibiotic , E = no E. coli infection negative contro). Feed base on corn- soybean is formulated as a basal fee . The experiments were conducted for 35 days, on day 21 chickens infected E. coli. ND vaccination is given at the age of four days and 15 days. The observed parameters were changes of macroscopic, isolation and identification of E. coli, changes in histopathology, blood profiles and antibody titer against ND. Results showed the prevalence colibasillosis on treatment B resulted in the lowest rate (33.3), results in the isolation and identification of chicken with positive clinical symptoms kolibasilosis infected APEC, and microscopic observations showed histopathological changes in the organs pancreas, heart, liver, and exchanges fabrisius lung. The results of the blood profile analysis showed the presence of the body’s defense mechanism against bacterial infectio , which is evident from the number of leukocytes in treatment A and C are higher tha treatment E (P> 0.0 ), red cell count treatment D higher than E treatment (P> 0.0 ), and total of Hb treatment A higher than treatment E P> 0.0 ). Based on the overall health status, it can be concluded that the administration of bioaditif decrease the prevalence o  colibasillosis 67.7 % .
Isolation and Identification of Egg Drop Syndrome Virus with Hemagglutination and Hemagglutination Tests Fitrawati, Fidyah; Wibowo, Michael Haryadi; Amanu, Surya; Sutrisno, Bambang
Jurnal Sain Veteriner Vol 33, No 1 (2015)
Publisher : Fakultas Kedokteran Hewan

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Egg drop syndrome (EDS) is a disease that attacks layer hens in the production phase causing failure of peak eggs production, decreased in eggs production, and presence of eggs without shell. This study was conducted to isolate and identify the EDS virus in the chicken layer that was diagnosed as a disease of EDS by hemagglutination (HA) and  hemagglutination inhibition (HI) assays. Specific pathogen free (SPF) layerchickens which were passing through the production phase fed with food which was mixed with egg without shell from SR/WNO/2011. The chicken together with chicken FF/Sleman/2011 were dissected when pathological lesions, such as the dents or palor eggs observed. The uterine tissues were then collected for samples. Infundibulum of chicken FF/Sleman/2011 was explored and was found out that the eggs were lack ofegg shells. The eggs were then washed using sterile PBS. The three subsequent samples were propagated in the allantoic fluid of embryonated duck eggs for 16 days. Allantoic fluid was harvested after being incubated for 4 days. It was then tested by HA and HI assay by use of avian influenza virus (AIV), Newcastle disease virus (NDV), and EDS anti serum. The HA and HI test with EDS anti serum used chickens erythrocytes in percentageof 0,8. The HA test in uterine sample of both SR/WNO/2011 and FF/Sleman/2011 showed the titer 23 HA units and egg washed water sample of FF/Sleman/2011 showed titer 22 HA units. The HI test for comparison with ND and AI anti serum was negative, while the test with EDS anti serum showed positive results. Based on the HA and HI test results, it was concluded that the virus grown in the allantoic fluid is EDS virus.
The Development of Pathogenicity of Avian Influenza Virus Isolated from Indonesia Wibowo, Michael Haryadi; Srihanto, Agus Eko; Putri, Khrisdiana; Asmara, Widya; Tabbu, Charles Rangga
Indonesian Journal of Biotechnology Vol 18, No 2 (2013)
Publisher : Universitas Gadjah Mada

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Highly pathogenic avian infl uenza outbreak in Indonesia has been reported in various poultry due toH5N1 subtype. The presence of multiple basic amino acids within the cleavage site of HA glycoprotein hasbeen identifi ed to be associated with the pathogenicity of avian infl uenza virus. The study was retrospectivestudy which was designed to characterize the cleavage site and fusion site region of haemagglutinin gene ofAIV isolated from various poultry in 2003 to 2013. Isolation, Identifi cation and propagation were carried outto collect viral stock. For virus detection, reverse transcriptase PCR (RT-PCR) method on H5 and N1 genefragment was performed. All of RT-PCR HA gene positive products were sequenced for further nucleotideanalysis and to determine the nucleotide composition at the targeted fragment. The results are all AIV isolateswere identifi ed as H5N1 subtype. The sequence analyses revealed some motives of basic amino acid motivethat were classifi ed as highly pathogenic avian infl uenza virus. Further analyses on fusion domain of all AIVisolated during the period 2003 to 2013 showed conserved amino acid.Keywords: avian infl uenza, haemagglutinin, cleavage site, basic amino acid, fusion site