Judul: Nisbah Akar – Pucuk Biomassa dan Massa Karbon Pohon Di Areal IUPHHK-HA PT. Suka Jaya Makmur, Ketapang, Provinsi Kalimantan Barat
Abstrak: Root to shoot ratio (R/S Ratio) of dominant tree biomass in tropical rain forests (especially IUPHHK-HA PT. Suka Jaya Makmur West Kalimantan) is as follows: (a) R/S root biomass with the main stem biomass ranged between 0.1743 to 0.4828 with an average value of 0.3006. (b) R/S root biomass to above-ground tree biomass (trunks, branches, twigs, and leaves) ranged from 0.1376 to 0.3983 with an average value of 0.2475. Root to shoot ratio (R/S ratio) of carbon mass of the dominant trees are as follows: (a) R/S carbon mass of roots with carbon mass of the main stem ranged from 0.1724 to 0.4593 with an average value of 0.3. (b) R/S carbon mass of tree roots with carbon mass of above the ground ranged from 0.1361 to 0.3951 with an average value of 0.2496. The average value of biomass expansion factors (BEF) of above ground and total of tree is 1.2392 and 1,5398. The average tree carbon mass expansion factor of above ground and total tree is 1.2304 and 1,5305 (Based on data from the dominant trees in IUPHHK-HA PT. Suka Jaya Makmur West Kalimantan).
Keyword: BEF., Root to Shoot Ratio, Carbon Mass, Biomass

Judul: Persamaan Alometrik Biomassa dan Massa Karbon Akar Pohon Hutan Alam Tropika di Areal IUPHHK-HA PT. Suka Jaya Makmur, Kabupaten Ketapang, Provinsi Kalimantan Barat.
Abstrak: Main factor which is considered of global warming is increasing concertration of greenhouse gases (GHG) emissions in the atmosphere. Plants have the ability to absorb CO2 from the atmosphere into useful energy through the process of photosynthesis. This process produces the O2 and energy, and some of the energy stored in the form of biomass. Natural tropical forest is one of the forest type that can absorb CO2 well, so its potential to savings carbon. The goal of this research is to get the allometric equation and tree roots of biomass and carbon mass of natural tropical forest in IUPHHK-HA PT Suka Jaya Makmur areas. Selection of sample trees on each class has been done by a purposive sampling and carbon content analysis of sample materials are conducted in the laboratory of wood chemistry in the totally of forestry, IPB. The best equation of allometric was selected based on the highest R2(adj) and the smallest standard deviation (s). Allometric equation model of tree roots biomass allometric relationship with root diameter, trees highest, and biomass of roots of the tree above the ground are as follows : BA = 0,0162 D2,55, BA = 0,0398 D3,39 T-1,24, BA = 0,1510 BB1,14, BA = 0,9397 BC1,10, BA = 2,5351 BD1,11, BA = 0,0691 BT1,14. Allometric equation model of tree roots carbon mass with diameter, tree height and with carbon mass of tree above ground are as follows : CA = 0,0089 D2,58, CA = 0,0229 D3,47 T-1,31, C = 0,1545 CB1,08, CA = 0,9440 CC1,12, CA = 2,5704 CD1,14, CA = 0,0741 CT1,14. T-student test results of tree roots carbon mass equations of tree roots carbon mass with the mass carbon of parts of the tree above the ground, and equations of tree roots carbon mass with diameter and height of the tree, shows that the results are not different.
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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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