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Kebuntingan Hasil Transfer Blastosis Mencit yang Dibekukan dengan Metode Vitrifikasi Kriolup Batan, I Wayan; Suatha, I Ketut; Djuwita, Ita; Handhayani, Nining; Esti Prasetyaningtyas, Wahono; Adnyane Mudite, Ketut; W Lay, Bibiana; -, Supar; Boediono, Arief
Jurnal Veteriner Vol 12, No 3 (2011)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

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Abstract

The aim of the study was to assess the viability of vitrified embryo using cryoloop as a carrier ofembryo. The blastocyst stage embryos were collected from superovulated mice. Embryos were frozenusing vitrification method and vitrified embryos were loaded on copper filament cryoloop before dipped inliquid nitrogen. The viability of vitrified embryos was assess in vitro by medium cultered and in vivo bytransfered them to recipient mice. The result shows the viability of vitrified embryos was 85,7% after 24hours cultured and the embryos were born from two pregnant recipient mice out of nine (22%) or fouroffspring out of 63 trasfered embryos (6%). In conclusion, vitrified blatocyst stage embryos using cryoloopas a carrier could keep the viability of the embryos and they could be transfered to the recipient mice andwere born normally.
Aktivitas IgY dan IgG Antitetanus setelah Perlakuan pada Berbagai pH, Suhu dan Enzim Proteolitik Suartini, I Gusti Ayu Agung; Teguh Wibawan, I Wayan; Suhartono, Maggy T.; -, Supar; Suarta, I Nyoman
Jurnal Veteriner Vol 8 No 4 (2007)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

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Abstract

A study was carried out to find out an alternative method of producing antitetanus antibody (IgY) in chicken and to evaluate its activity at different levels of pH, temperatures and proteolytic enzymes. Antitetanus IgY was produced by immunization of chickens with tetanus toxoid, three times weekly at gradual doses of 100, 200, and 300 Lf, respectively. Serum samples were collected 4 weeks following the last immunization. IgY was purified by ammonium sulfat precipitation and gel filtration chromatography (Sephadex G. 120).The purified IgY was then treated at different levels of temperatures and pH as well as proteolytic enzymes. Commercial antitetanus IgG was used as control. The activities of treated IgY and IgG were tested by enzyme linked immunosorbent assay (ELISA). IgY and IgG activities were significantly reduced at 80ºC and completely destroyed at 90ºC. Treatment with pepsin significantly reduced IgY and IgG whereas trypsin slightly reduced IgY activities and has no effect on IgG activities. IgY and IgG activities were reduced significantly at pH < 3 and and only sightly reduced at pH>10. It is evident that heating at >90oC, pH at <3 and treatment with pepsin significantly reduced IgY activities and it appears that IgG was more resistent to the efect of temperatures, pH and proteolytic enzymes