Judul: Pendugaan Riap dan Biomassa Mangrove di PT Kandelia Alam dan PT Bina Ovivipari Semesta Kalimantan Barat.
Abstrak: Increment and biomass are two important indicators mainly used to measure the potential productivity of forest stand. This research was intended to measure the increment rate and biomass content of mangrove forest using remote sensing and terestrial approaches. The research was conducted in mangrove forest within the Kandelia Alam and Bina Ovivipari Semesta concession area, Kubu Raya Regency, West Kalimantan Province. The ground measurement plots were located on the basis of time series analysis of satellite imageries acquired in 1989, 1998, 2002, 2007, 2009, and 2010. The mean annual increment and the current annual increment were computed from the data collected at the ground measurement plots. The study result shows that the biomass content of mangrove forest is quite high. At the age of 24 years, the CAI is still increasing, where no intersection was found between CAI and MAI lines. The intersection seems to occur several years later.
Keyword: mean annual increment, mangrove, current annual incremen, biomass

Judul: Pendugaan biomassa beberapa kelas umur tanaman Rhizophora apiculata pada areal PT. Bina Ovivipari Semesta, Kabupaten Kubu Raya, Kalimantan Barat
Abstrak: Mangrove forests develop along coastlines that are always or regularly inundated by sea water and affected by tides but not affected by the climate. Ecological function of mangrove as carbon sink becomes important thing since climate change tends to more interesting issue. Trees absorb CO2 through photosynthesis and convert it into organic carbon and store it in biomass of the tree body. PT. Bina Ovivipari Semesta is a private company has permission IUPHHK-HA on the area of mangrove forest. This company replant the logged over area. The plants on the logged area will have different content of biomass keep pace with the growth of these plants per year. The purpose of this research is to develop allometric equation model to estimate biomass of Rhizophora apiculata on several age classes. The study was conducted at mangrove forest of PT. Bina Ovivipari Semesta, Kubu Raya District, West Kalimantan Province. It was conducted during July-August 2010. Data that were collected consisted of trees’ dimension: wet weight of each segment, sample wet weight of test sample per segment, and dry weight of test sample per segment. Data that were collected with destructive methods. The data was analyzed using Minitab software release 14 with statistic values test and validation test. The ratio values of water content and wood specific weight have inverse relation. The value of trees’ water content tends to decline with increasing trees’ age, while the value of wood density tends to increase with increasing trees’ age. Younger trees have larger cell cavities so the water can fill in the cavities easily. The smaller the cell cavities in mature trees are caused by wood contents. Biomass of tree on age of three, six, and nine years were 0,96 kg/ind; 5,38 kg/ind; and 39,11 kg/ind respectively. It shows that biomass value of trees’ parts tend to increase together to the age of the trees. Allometric equation of Rhizophora apiculata on three to nine years of age gives total biomass in kg, respectively: leave (B = 0,0204174 D1,95), twig (B = 0,0074131 D2, 23), branch (B = 0,0213796 D2,1), bar (B = 0,0027542 D4,01), areal root (B = 0,0079433 D3,25) and total biomass (B = 0,027542 D3,22).
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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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