Judul: Pembentukan Persamaan Matematika Volume Sortimen Kayu Perdagangan pada Pohon Berdiri Menggunakan Teknik Inventarisasi Kualitas. Studi Kasus Jenis Shorea parvifolia di Areal Kerja IUPHHK-HA PT Sarmiento Parakantja Timber, Kalimantan Tengah
Abstrak: Penyusunan rencana pengelolaan hutan untuk menghasilkan kayu secara berkelanjutan memerlukan data kualitas dan kuantitas kayu yang terdapat di seluruh areal hutan. Penggunaan metode inventarisasi kualitas dalam pendugaan volume batang melalui dimensi pohon dan data dasar kualitas dapat menghasilkan data kemungkinan pemanfaatan kayu secara optimal pada batang pohon. Pembentukan model dalam menduga volume batang optimal dari jenis Shorea parvifolia menggunakan analisis korelasi, korelasi kanonik, dan regresi berganda. Penelitian ini dapat menjelaskan hubungan yang kuat antara volume batang optimal, dimensi pohon, dan data dasar kualitas dari 30 pohon contoh. Persamaan penduga volume batang terbaik untuk jenis Shorea parvifolia didasarkan atas data dasar kualitas dan volume total pohon.
Keyword: inventarisasi kualitas, pendugaan volume, Shorea parvifolia

Judul: Model Penduga Volume Sortimen Kayu Perdagangan pada Pohon Berdiri dengan Inventarisasi Kualitas. Studi Kasus Jenis Shorea leprosula Miq. di Areal IUPHHK-HA PT Sari Bumi Kusuma Kalimantan Tengah
Abstrak: The tree volume estimated by the tree volume estimation model in forest inventory is still deliver a general result without clarifying the tree volume specifically. Along with the needed of increasing the efficiency of forest resource management through the optimization of tree volume estimation based on the woods utilization, the use of tree’s quality inventory method becomes a necessary condition to meet those goals. This study aims to create an optimal estimation model of Shore leprosula Miq. species based on the tree quality estimates variable. The model is created through the canonical correlation analysis and multiple regression analysis based on the measurement result of 30 samples of Shore leprosula. Its resulting the optimal wood volume estimation model for plywoods, lumbers, and chipwoods raw material. The wood quality variables tested and effected significantly to the optimal woods volume is diameter at breast height, bole height, the number of healthy knots, and the number of dead knots. Thus, the increasing of the healthy and dead knots number on the wood volume estimation models that known can produce a more specific use of tree volume estimation.
Keyword: Shorea leprosula Miq., quality inventory, multiple regression, modeling, canonical correlation

Judul: The Leukocyte Profile of Pregnant Friesian Holstein Cows vaccinated with Escherichia coli K99 polivalen vaccine.
Abstrak: The objective of this experiment was to study the leukocyte profile of pregnant cows vaccinated with E.coli K99 polivalen vaccine. Three pregnant Friesian Holsteins cows were used in this experiment. Before the administration of vaccine, the cows were given a series of immunomodulator injection for three days. The vaccinations were administered three times at 8, 6, and 4 weeks before calving. Blood were drawn through jugular vein, first before the administration of vaccines, then weekly until calving. Based on the observation, it can be concluded that the administration of E.coli K99 polivalen vaccine in pregnant cows not affected the leukocyte profile. Keywords : Escherichia coli vaccine, leukocyte profile, differential leukocyte
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