Judul: Simulasi Pengaturan Hasil Hutan Kayu Berdasarkan Jumlah Pohon pada Hutan Alam Produksi di Kalimantan Timur
Abstrak: Yield regulation used in The Bussiness Plan (RKU) long term 10 years using a method based on the volume of timber and extensive acreage. Determination of annual allowable production based on volume and wide can describe the availability of the raw material wood round, but could not become the tool of control sustainable natural production forest because of the current forest conditions the high fells of the former forest. Therefore, the simulation of yield regulation based on the number of trees conducted to improve the methods and complete the aspects of yield regulation as long as it is used in every company of forestry. This research using the methods which is, group of types and trees diameter, calculation of the number of trees, simulation calculation of the stands are worthy of slash, classification of plots, and mapping the distribution of plots. Analysis of data was conducted on the calculation of the stand’s volume by using a formula that based on the research of Direktorat Jenderal Bina Program Kehutanan Edisi Khusus (DJBPKEK) No. 51 A tahun 1983 with the formula V = 0.0001234 D2,49130 for the Dipterocarpaceae and V = 0.0001450 D2,42950 for the non Dipterocarpaceae. Simulations was carried out with two approaches, with and without observe to access. Approach with regard to access is the yield regulation approach in the form of a grouping of the plots cutting which will be managed by considering access, while approach without regard to access is the yield regulation appoarch in the form of a grouping of the swath slash which will be managed by the assumption that all of the plots cutting can be accessed, so the company can manage all plots cutting. The result of research about yield regulation simulation based on the number of trees shows that the length of cutting rotation is 70 years, by the standing stock at least up to 50 cm, 25 tree/ha. Annual quota of production based on the number of trees in diameter 50 cm up as many as a year 15.843 tree with a volume of 40.467 m3/years, and the acreage of 800 ha a year.
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Judul: Model Simulasi Pengaturan Hasil Hutan Kayu pada Hutan Alam PT Suka Jaya Makmur Provinsi Kalimantan Barat
Abstrak: Sustainable forest management is done to achieve sustainable forest in terms of economic, ecological, and social. Information about the dynamics of stand structure and yield regulation methods is required for estimating stand structures in the future and yield regulation methods that can be applied in a virgin area. The purpose of this research is to gain sustainable yield regulations model and information on company income and forest communities from some scenarios. The dynamics of stand structure were obtained by calculating ingrowth, upgrowth, mortality, and basal area. The application of this yield regulation method considered the number of trees available in a forest area and rotation and logging intensity used. Simulations are carried out by two methods which are the conventional yield regulation methods and the adaptive yield regulation methods. The simulation results were showed the greater intensity of logging, the larger trees would be cut down and the longer rotation would be achieved. Furthermore, the market price and the number of trees affected the logging is done
Keyword: Bogor Agricultural University (IPB), yield., rotation, number of trees, intensity, dynamics

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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