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Deteksi virus avian influenza (H5N1) pada unggas air dengan uji Haemagglutination Inhibition (HI) dan Reserse Transcriptase-Polymerase Chain Reaction (RT-PCR) di Propinsi Lampung D.D. Putri; E. Handharyani; R.D. Soejoedono
Hemera Zoa Vol. 1 No. 1 (2009): Jurnal Hemera Zoa
Publisher : Hemera Zoa

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Abstract

The objective of this research is to examine the presence of antibody of avian influenza (AI) H5 and detection of genetic material the subtype of AI virus (H5N1) in waterfowls in Lampung Province. Samples consisted of 673 serum and 673 cloacal swabs, and collected from water fowls Epidemiologycally, samples collection were performed by using multistage sampling method. Examination of AI antibodies by Haemagglutination Inhibition test (HI test) demonstrated that H5 antibodies were found at all district in Lampung Province. High frequency of antibodies were noted at district ofo Tulang Bawang (69.41%). The average of antibody titres of AI were low (under 24) and the lowest antibody titre was found at district of Tulang Bawang (20.92). Evaluation of genetic material H5N1 individually by using Reverse Transcriptase – Polymerase Chain Reaction (RT-PCR) was not found among water fowls. The results showed H5 and unknown N subtype (H5Nx); the second subtype was unknown H and N1 (HxN1). Key words: Avian Influenza, Haemagglutination Inhibition (HI), Reverse Transcriptase Polymerase Chain Reaction (RT-PCR)
Hematology of common carp following DNA vaccination and koi herpesvirus challenge test Nuryati, Sri; Maswan, N.A.; Alimuddin, .; Sukenda, .; Sumantadinata, K.; Pasaribu, F.H.; Soejoedono, R.D.; Santika, A.
Jurnal Akuakultur Indonesia Vol. 9 No. 1 (2010): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.781 KB) | DOI: 10.19027/jai.9.9-15

Abstract

The study was aimed to determine the effectiveness of DNA vaccine doses on hematological aspect which represent immune response and its influence on common carp survival rate. DNA vaccines encoding the viral glycoprotein of  koi herpesvirus (KHV) have been proved to highly protect the fish under laboratory condition.  A dose of 12.5 µg/100 µl vaccine had resulted in a survival rate of 96.67 % during 30 days after challenge test with a lethal dose of KHV. Fish vaccinated using lower doses, i.e. 2.5 and 7.5 µg/100µl showed 100% mortality after 15 and 19 days challenge test respectively, whereas non vaccinated fish as a control showed 100% mortality after 17 days challenge test.  Total leucocytes of the vaccinated fish were higher than control until 42 days post vaccination, but declined afterward.  Phagocytic index of the vaccinated fish using 12.5 µg/100 µl was declined after 49 days post vaccination or 7 days post challenge test. Key words: DNA vaccine, Koi herpesvirus (KHV), leucocyte, phagocytic index, Cyprinus carpio   ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh vaksinasi menggunakan vaksin DNA dengan dosis berbeda terhadap gambaran darah ikan sebagai respresentasi tanggap kebal ikan mas serta pengaruhnya terhadap tingkat kelangsungan hidup ikan mas. Vaksin DNA penyandi glikoprotein koi herpesvirus (KHV) dapat memberikan proteksi yang tinggi pada percobaan skala laboratorium.  Vaksinasi dengan dosis 12,5 µg/100µl dapat mempertahankan kelangsungan hidup sebesar 96,67% selama satu bulan setelah uji tantang dengan virus KHV menggunakan dosis letal.  Ikan yang divaksin dengan dosis yang lebih rendah yaitu 2,5 dan 7,5 µg/100µl mengalami kematian total berturut-turut setelah 15 dan  19 hari uji tantang, sedangkan ikan kontrol yang tidak divaksin mengalami kematian total setelah 17 hari uji tantang.  Jumlah leukosit total ikan yang divaksinasi lebih tinggi dibanding dengan kontrol sampai hari ke-42, setelah itu mengalami penurunan.  Indeks fagositosis ikan yang divaksin dengan dosis 12,5 µg/100µl mengalami penurunan setelah hari ke-49 atau 7 hari setelah uji tantang. Kata kunci: Vaksin DNA, Koi herpesvirus (KHV), leukosit, indeks fagositosis, Cyprinus carpio