Judul: Studi penyusunan tabel volume lokal jati ( Tectona grandis L. f. ) untuk kesatuan hutan Purwakarta
Abstrak: Dalam kegiatan pengelolaan hutan diperlukan suatu rencana pengelolaan yang baik, cermat dan terarah. Untuk keperluan tersebut, inventarisasi hutan merupakan bagian kegiatan perencanaan yang penting karena data yang dihasilkan akan menjadi dasar utama bagi usaha pemanfaatan hutan. Mengingat kondisi tanaman Jati (Tectona grandis L.f) meliputi wilayah yang luas, serta adanya faktor pembatas alam (kesuburan tanah, jenis tanah, ketinggian tempat, dan lain-lain), biaya dan waktu pelaksanaan inventarisasi, maka pengukuran tinggi pohon merupakan pekerjaan yang menyulitkan. Oleh sebab itu perlu disusun suatu kunci pedoman (tabel tegakan. volume lokal) dalam pendugaan potensi Penelitian ini dilaksanakan dengan tujuan untuk mencoba menyusun suatu tabel volume lokal bagi tegakan Jati (Tectona grandis L.f), sehingga kegiatan inventarisasi hutan dapat dilaksanakan secara sederhana, efisien dan praktis tanpa mengurangi ketelitian yang diinginkan.
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Judul: Tabel Volume Pohon Jenis Jati (Tectona grandis L.f) Menggunakan Pohon Rebah pada Tegakan Hutan Rakyat (Studi Kasus Hutan Rakyat di Kabupaten Kulon Progo Daerah Istimewa Yogyakarta).
Abstrak: Volume table is an information in table form that consist volume estimate type of tree from parameters itself. Arranging volume tables in private’s forest not only for inventory activities but olso for information for farmers of transaction activity. The abjective of this research are to provide information about how to arrange volume table for readers and provide estimate information of tree volume of Jati (Tectona grandis L.f) accurately for farmers especially for farmers in Regency Kulon Progo’s private forest. Sample that used in this research was 30 of falled Jati (Tectona grandis L.f) trees. This sample was divided into two, they are data for volume arrangement and data for model validation. Best model choosen considered value indicator such as R2, R2adj, F test, and value of s in model arrangenment step and the value of chi-square (x2), bias, standard error (SE), and RMSE in model validation step bassed on available equation models. The compared and analysis result to value of R2adj and chi-square (x2), showed that equation model accurately in estimating volume in Regency Kulon Progo private forest are equation of Berkhout (V=0.000442D2.229), Stoate (V=1.116+0.00000913D+ 0.00000584D2T-0.0723T), and Hohenadl-Krenn (V=0.137-0.014D+0.0013D2).
Keyword: private forest, Jati (Tectona grandis L.f), volume table

Judul: Antibody Responses against Newcastle Disease and Evaluation of Infectious Bronchitis Maternal Derived Antibody on Vaccinated Layers.
Abstrak: Information of maternal derived antibody (MDA) and onset of immunity after vaccination is important to determine appropriate vaccination programme of chickens. The aim of this study was to evaluate duration of Infectious Bronchitis (IB) MDA and evaluate onset of immunity Newcastle Disease (ND) vaccination among layers. All layers were vaccinated using live ND and Infectious Bursal Disease (IBD) at one day old age, and received Avian Rhinotracheitis (AR) vaccine at 4 day old age. Serum samples were collected at various ages: 7, 10, 14, 20, 22, 24, 29 and 35 day old. The presence of ND antibodies was measured by the hemagglutination inhibition (HI) test, whilst the presence of IB antibodies was measured by enzyme-linked immunosorbent assay (ELISA). Our study showed that ND antibodies were at positive level until 24 day old age, and reached protective level ≥ 25 only at 7 day old age, whilst IB MDA were positive up to 17 day old age. This result indicating the needs of ND booster vaccination at least at 24 day old and IB vaccination at 17 day old age.
Keyword: antibody, Infectious Bronchitis, layers, Newcastle Disease, vaccination