Judul: Perkembangan Proteksi ND Dan Populasi Ayam Buras Proyek Iptekda V Lipi Di Desa Sumber Rejo Kecamatan Rajabasa Lampung Selatan
Abstrak: Penelitian ini mengikuti proyek IPTEKDA V LIPI di Politektik Pertanian Lampung selama bulan September 2002 sampai dengan Februari 2003. Penelitian ini dilakukan untuk mengetahui keberhasilan vaksinasi ND dilihat dari titer antibodi dan perubahan popuJasi ayam buras Proyek IPTEKDA V LIPI dan mengetahui karakteristik petemak di Desa Sumber Rejo Kecamatan Rajabasa, Lampung Selatan. Metode yang digunakan adalah pelaksanaan vaksinasi ND. Hemaglutination Inhibition (HI) test, monitoring populasi ayam buras dan penyebaran kuesioner. Data diolah kualitatif secara deskciptif dengan tabuJasi berdasarkan basil perhitungan rata-rata HI dengan GMT (Geometric Mean Titre). hasil monitoring populasi dan hasil kuesioner. Hasil yang diperoleh adalah vaksinasi ND oleh proyek IPTEKDA V LlPI di Desa Sumber Rejo yaitH GMT 1=64, GMT 11=84,44 dan GMT 111=47,7 dapat disimpulkan bahwa vaksinasi berhasil menimbulkan zat kebal terhadap ND dengan GMT > 32. Perubahan populasi selama pengamatan menunjukkan penurunan dengan rata-rata perbulan 3,56% disebabkan angka penjualan (84,78%) dan "kematian" (15,12%). Petemak ayam buras di Desa Sumber Rejo pada umumnya latar pendidikannya masih rendah dan mereka meme1ihara ayam buras hanya sebagai pekerjaan sambi Ian. Penghasilan petemak perbulan (68%) kurang dari Rp. 300.000,00 sehingga disimpulkan tingkat perekonomian masyarakat masih rendah. Sebanyak 70,8% petemak mengetahui ten tang ND, tetapi hanya 42,3% Petemak yaitu peserta proyek yang ayamnya divaksinasi dan sisanya 57,7% petemak belum mengetahui cara pencegahan ND. The study was located at IPTEKDA V LIPI project during September 2002-February 2003. The objective of this study is to evaluate ND (Newcastle Disease) vaccination result based on antibody titre and the change of native chicken population and figure out the chicken farmers characteristic in Sumber Rejo Vii/age, Rajabasa District of South Lampung. The method consists of Haemaglutination Inhibition (HI) test, monitoring of native chicken population number and questionnaire . The result showed that GMT (Geometric Mean Titre) measuredfrom rl, 2nd and 3rd vaccination indicated the titre higher than GMI' 32, which means the vaccinated population was protected against ND. The population is decreased by 3,56% per month due to harvesting for reimbursement of credit 84,78% and "mortality" 15,12%. Chickenfarming is only side job offarmers. About 70,3% of chicken farmers know about ND occurrence but only 42,3% of them did vaccination, the others 57, 7% of them do not aware of ND prevention.
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Judul: Immune Response of IPB-D1 and IPB-D2 Chicken against Newcastle Disease (ND) Vaccination
Abstrak: Ayam lokal memiliki potensi sangat tinggi peningkatan produktivitasnya. Pengembangan ayam galur baru IPB-D1 dan IPB-D2 sedang dilakukan oleh beberapa peneliti di Fakultas Peternakan dan Fakultas Kedokteran Hewan IPB guna mendapatkan ayam yang lebih unggul dengan ketahanan terhadap penyakit yang lebih baik. Penelitian terdahulu telah menghasilkan galur ayam IPB D1. Para peneliti telah melakukan seleksi terhadap indukan ayam IPB D1 untuk membentuk galur baru ayam IPB D2. Ayam IPB D2 merupakan ayam yang diproduksi dari indukan ayam IPB D1 yang memiliki konsentrasi IgY tinggi. Penelitian ini bertujuan mengetahui respon kekebalan pasa ayam IPB-D1 dan IPB-D2 terhadap vaksinasi Newcastle Disease (ND) untuk penentuan program vaksinasi terhadap ayam IPB-D1 dan IPB-D2. Sebanyak masing- masing 12 ekor ayam IPB-D1 dan IPB D2 divaksinasi pada umur 20 minggu dan sampel serum di ambil pada saat sebelum vaksinasi dan 1, 2 serta 3 minggu setelah vaksinasi ND. Serum diuji menggunakan Uji Hemagglutination Inhibition (HI) untuk mengukur titer antibodi anti ND. Hasil penelitian menunjukan bahwa titer antibodi terhadap vaksinasi ND pada kedua kelompok ayam terbentuk sejak satu minggu setelah vaksinasi hingga pengamatan terakhir dengan rataan titer lebih dari 24 yang merupakan titer protektif terhadap infeksi ND. Titer masing-masing kelompok menunjukkan tidak adanya perbedaan yang signifikan. Kadar IgY dalam serum induk tidak berpengaruh dalam respons kekebalan terhadap vaksinasi., Local chicken has a very high potential to increase its productivity. The development of lines of local chicken named IPB-D1 and IPB-D2 by researchers of Faculty of Animal Husbandry and Faculty of Veterinary Medicine, IPB in order to obtain disease resistance has been carried it on. Previous studies have produced IPB D1 chicken lines, researchers have selected IPB-D1 to form a new line of IPB-D2 chickens. chickens are chickens progeny from IPB D1 parent stock chicken which have a high concentration of IgY. This study aimed to determine the immune response of IPB-D1 and IPB-D2 chickens to Newcastle Disease (ND) vaccination and influence of parents IgY concentration in the ND vaccination response to ensure the vaccination program for IPB-D1 and IPB-D2 chickens. Each 35 chickens IPB-D1 and IPB-D2 were vaccinated at 4 and 20 weeks of age. As much as 12 chickens randomly selected from each grup were bleed to collect the serum samples before vaccination and 1, 2 and 3 weeks after second ND vaccination. Serum was tested using the Hemagglutination Inhibition (HI) test to measure the anti-ND antibody titer. The results showed that antibody titers against ND vaccination in both groups of chickens were formed since one week after vaccination until the end of observation. The average of titer was more than 24 which was the titer protection against ND infection. The titer of each group showed no significant difference. The level of IgY in the ancestor serum had no effect on the immune response to vaccination.
Keyword: IPB-D1, IPB-D2, Vaksinasi, Newcastle Disease, Antibodi, IPB-D1, IPB-D2, Vaccination, Newcastle Disease, Antibody

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology