Judul: Kayu Sisa Pohon Ditebang dan Tidak Ditebang di IUPHHK-HA PT. Wijaya Sentosa, Wasior, Papua Barat
Abstrak: Logging activity was the harvesting of a forest that most will bring the waste wood. The occurrence of wood the rest of this can be caused by technical error on a field planning policy harvesting less accurate and natural factors in the field. This study aims to calculate the waste wood of felled trees and trees bears no and kind of cut down and classify the form of the waste wood produced from the activities of logging. The waste wood derived from trees to be felled by 64.36 % of the volume of the waste wood produced, while the waste wood that comes from the bears no cut down by 35.64 %. There are based on the shape of the rest of wood felled trees consisting of stump 4.19 % of, a short piece of 5.43 %, of the stem above 23.63 %, branches and twigs of 31.12 %, while the rest of the wood from trees felled not made up of the tree collapsed by 18.24 %, broken rod 14.24 %, and damaged by plans 3.16 %. In accordance with the approach of the exploitation of leftovers that are at least 10 centimeters diameter of 0.61, meanwhile, based on SK Dirjen Pengusahaan Hutan No. 212/KPTS/IV-PHH/1990 are at 0.84
Keyword: Bogor Agricultural University (IPB), Natural forest, Logging, Forest residu

Judul: Wood waste from tree harvesting on two harvesting intensities in iuphhk-ha pt inhutani ii malinau
Abstrak: Pemanenan kayu di pengusahaan hutan alam masih menghasilkan kayu sisa yang relatif besar. Metode kuantifikasi yang sering digunakan untuk menduga jumlah kayu sisa adalah metode pohon penuh (whole tree method). Metode ini hanya menyediakan informasi kayu sisa pada individu pohon yang ditebang dan tidak dapat mengetahui total jumlah kayu dalam satu satuan luas. Line intersect method adalah metode yang lebih ekonomis dan sederhana untuk menghitung jumlah kayu dalam satuan luas. Metode ini belum pernah diterapkan pada hutan alam di Indonesia. Tujuan penelitian ini adalah untuk menghitung jumlah kayu sisa berdiameter ≥ 10 cm setelah kegiatan pemanenan kayu dan menganalisis faktor yang berpengaruh terhadap jumlah kayu sisa. Pengukuran kayu sisa dilakukan pada plot contoh berbentuk lingkaran dengan luas plot tidak tetap. Rata-rata luas plot contoh adalah 2.6 ha. Hasil penelitian menunjukkan bahwa jumlah kayu sisa sebesar 135.96 m3/ha dan kayu sisa tebangan memiliki diameter < 35 cm sebesar 87.76%. Faktor yang berpengaruh terhadap jumlah kayu sisa adalah intensitas penebangan dan LBDS pohon yang ditebang., Timber harvesting in natural forest enterprises still produce a relatively large wood waste. Quantification methods that often used to estimate the amount of wood waste is whole tree method. This method only provides wood waste information on individual trees cut and it not able to provide information about total amount of wood in a unit area. Line intersect method is more economical and simple to determine the amount of wood in a unit area. This method has not been applied to natural forests in Indonesia. The purpose of this study was to quantify the amount of wood waste with diameter ≥ 10 cm after timber harvesting also to analyzing factors that influence the amount of wood waste. Measurements of wood waste has been done on a circular sample plots with an area of the plot is not fixed. Average size of sample plot is 2.6 ha. Results of this study shows that the amount of wood waste is 135.96 m3/ha and wood waste has a diameter < 35cm is 87.76%. Factors that influence the amount of waste wood are cutting intensity and basal area of felled trees.
Keyword: hutan alam, kayu sisa, pemanenan kayu, line intersect method

Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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