Judul: Sifat Fisis dan Struktur Anatomi Kayu Sepetir (Sindora spp.) dan Kayu Benuang (Octomeles sp.) Asal Kalimantan Utara.
Abstrak: Penelitian ini bertujuan untuk menilai kecocokan kayu sepetir (Sindora spp.) dan kayu benuang (Octomeles sp.) yang berasal dari hutan alam di Kalimantan Utara sebagai pengganti kayu-kayu komersil yang sudah lebih dahulu dimanfaatkan khususnya yang setara melalui kajian sifat fisis dan struktur anatominya. Sifat fisis yang meliputi berat jenis, kerapatan, kadar air, dan susut volume diukur dengan prosedur standar yang dimodifikasi, sedangkan struktur anatomi diamati secara makro- dan mikroskopis. Ciri makroskopis diamati secara langsung menggunakan lup perbesaran 15X, sedangkan ciri mikroskopisnya dengan mikroskop cahaya terhadap sediaan mikrotom. Dimensi serat diukur melalui sediaan maserasi menggunakan software ImageJ. Hasil penelitian menunjukkan bahwa kualitas serat kedua jenis kayu tergolong ke dalam Kelas Mutu II. Kayu sepetir tergolong ke dalam Kelas Kuat III dengan BJ 0.54, sedangkan kayu benuang Kelas Kuat V dengan BJ 0.28. Kayu sepetir cocok sebagai pengganti kayu mindi khususnya sebagai bahan baku furnitur, sedangkan kayu benuang cocok untuk menggantikan kayu balsa sebagai bahan baku aeromodelling, alat pelampung, mainan anak, penghambat panas, dan pulp.
Keyword: hutan alam, Octomeles sp., sifat fisis, Sindora spp., struktur anatomi

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 Leukosit Domba Ekor Tipis yang Diinfeksi Haemonchus contortus.
Abstrak: The aim of this study was to investigate the effect of Haemonchus contortus infection to white blood cell profile of Javanese thin tail sheep. Twenty males Javanese thin tailed sheep were divided into five groups, namely infected group of 500 L3, 1000 L3, 2000 L3, 4000 L3 and uninfective group as control. The blood and fecal samples were collected from rectum before and three weeks after infection. The blood samples were collected using venoject® from Jugular vein. The fecal samples were collected directly from rectum. The blood samples were examined to determine total of white blood cell (leukocytes) and white blood cell differential, whereas fecal samples to determine egg per gram. The result showed that Haemonchus contortus infections cause an increased total of leukocyte but were not significantly different among of level infection doses (P>0.05). Number of eosinophils were significantly different among uninfected group (P<0.05), but were not significantly different in number of lymphocyte, monocyte, and neutrophil (P>0.05). There where positively correlated significantly between the amount of egg per gram (EPG) and profile of eosinophil (P<0.05), however were negatively correlated significantly between the amount of egg per gram (EPG) and neutrophil’s profile (P<0.05). There where no correlation significantly between the amount of egg per gram (EPG) and profile of white blood cell, lymphocyte, and monocyte (P>0.05).
Keyword: differential leukocyte, Haemonchus contortus, leukocyte, sheep