Judul: Karakteristik sifat dasar kayu untuk bahan baku industri mebel
Abstrak: Mebel atau furnitur merupakan alat perabotan rumah tangga yang kebutuhannya terus meningkat. Makin tinggi tingkat pendidikan dan kesejahteraan masyarakat, makin tinggi dan makin beragam juga peralatan rumah tangga yang dibutuhkan. Kebutuhan masyarakat akan mebel di Indonesia masih tetap tinggi. Namun akhir-akhir ini jenis kayu konvensional yang mempunyai kriteria baik untuk bahan baku industri mebel sudah sangat terbatas jumlahnya, sehingga diperlukan jenis-jenis kayu baru yang dapat dipakai sebagai bahan substitusi. Pemanfaatan kayu yang tepat dan sesuai dengan sifat dasar kayu yang dimiliki, di samping mampu meningkatkan efisiensi juga sanggup memberi nilai tambah yang lebih baik. Oleh karena itu perlu diketahui sifat dasar kayu yang cocok untuk bahan baku industri mebel. Penelitian ini bertujuan untuk menentukan sifat dasar kayu baik sifat makroskopik maupun sifat mikroskopik kayu yang baik untuk bahan baku industri mebel. Jenis-jenis kayu yang digunakan dalam penelitian ini didasarkan atas informasi dari Dinas Perindustrian Jawa Tengah di Semarang Dari informasi itu menunjukkan bahwa selama ini ada sekitar dua puluh jenis kayu yang umum dipakai sebagai bahan baku industri mebel. Untuk memperoleh jenis-jenis kayu untuk bahan penelitian yang representatif dari dua puluh jenis kayu yang dinyatakan paling banyak dipakai sebagai bahan baku industri mebel, kemudian dipilih secara random delapan jenis kayu yang selanjutnya digunakan sebagai bahan penelitian. Bahan-bahan lain yang digunakan dalam analisis sifat makroskopik dan sifat mikroskopik kayu yaitu Stereoscopic Microscope with Digital Camera Model DCZ-456H Nasional Optical & Scientific Instruments Inc, loupe, amplas, dan cutter. Hasil analisis sifat dasar kayu yang baik untuk bahan baku industri mebel adalah kayu yang mempunyai ciri-ciri sifat makroskopik seperti tekstur kayu yang moderat tetapi lebih disenangi yang mempunyai tekstur halus, serat kayu dominan lurus, bergelombang dan agak bergelombang, kesan raba permukaan kayu yang dominan licin sampai agak licin dan umumnya mengkilap, memiliki corak (figure) yang unik dan menarik serta kekerasan kayunya tergolong moderat artinya tidak terlalu keras. Sementara sifat mikroskopik kayu yang cocok adalah kayu yang memiliki pola penyebaran pori tata lingkar (ring porous) dan ukuran diameter pori berukuran sedang
Keyword: mebel, makroskopik, mikroskopik, Bogor Agricultural University

Judul: Struktur Anatomi dan Sifat Fisis serta Alternatif Tujuan Penggunaan Tiga Jenis Kayu Asal Kalimantan
Abstrak: Wood is a product of living organism that has special characteristic and appearance. Every single species has its own character. Indonesia has about 4000 species of woody plants, but only 95 species have been studied comprehensively. Therefore, study on wood properties is very important not only for determining their proper utilization, but also for better processing and further treatments. Among thousands of existing wood species in Kalimantan, utilization of Belangeran (Shorea Balangeran (Korth.) Buck), Bungur (Lagerstroemia speciosa Pers.) and Medang (Cinnamomum spp.) woods is still limited and has not optimize yet. Through well understanding of their wood characteristics and properties, utilization of these three wood species become more optimize. It was hope that these three woods could be utilized as the alternative to replace the conventional species which tended to decrease year by year. The main material used is a small piece of wood (a disc 5 cm thick) extracted from tree stem at 1.3 meters above the ground from each species. From each disc, wood sample for every measurement was taken representatively following procedural standard. Macroscopic characteristics consist of wood color, figure, texture, grain, lustre, odor and hardness, while microscopic characteristics consist of pore (its arrangement and distribution, perforation plate, pitting structure on the cell wall and contain); ray parenchym (its size, composition and contain); type of axial parenchym and fiber morphology. Microscopic observation was conducted through the maceration specimens of Schlutze and the microtome specimens of Sass. Physical properties of wood consist of moisture content as well as density and specific gravity. The result showed that wood color of three species studied varied: reddish brown in Belangeran, pale brown to reddish in Bungur and yellowish brown in Medang. Heartwood and sapwood demarcation is clearly distinguished only in Belangeran wood, while growth ring is clearly only in Bungur wood. Diffuse pattern of pore was found in Belangeran and Medang woods, while ring porous pattern in Bungur wood. Generally, their vessels are solitary and radially multiple 2-4 cells. Vestured pit, tilosis and axial intercellular channels are the specific characters of Belangeran wood, while Bungur wood are vestured pit and prismatic crystal. Specific characters of Medang wood is yellowish white of amorphous material and oil cell (laticifer). Regarding to pulp and paper raw material, fiber quality of three wood species studied belong to Class III. In term of strengthness, these three wood species are suitable for structural purposes: Belangeran is for Strength Class II, while Medang and Bungur Strength Class III. Belangeran and Bungur woods are also potential as raw material of meubel and furniture.
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Judul: Gambaran Darah Merah Domba yang Disuperovulasi sebelum Kawin dan Disuntik hCG Hari ke-6 setelah Kawin pada Awal Kebuntingan.
Abstrak: PMSG and hCG are hormones that are often used for superovulation. Superovulated ewes have different conditions from ewes without superovulation. This research was designed to study red blood cells count, hematocrit values, and hemoglobin levels of the superovulated sheep. Twenty one ewes weighing between 15 up to 25 kg were divided into 4 groups. The first group was control without superovulation and without hCG injection. The second group was superovulated before mating. The third group was given hCG on the 6th day after mating, and the fourth group was superovulated before mating and injected with hCG on the 6th day after mating. Blood samples were drawn from the jugular vein every 3 days during the early pregnancy. The result showed that superovulation prior to mating and hCG injection after mating did not affect red blood cells count, hematocit, and hemoglobin concentrations.
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