Judul: Pemodelan Simulasi Pengelolaan Hutan Alam di PT Suka Jaya Makmur
Abstrak: Forest product is consists of timber, non-timber forest products and environmental services. Currently, utilization of forest resources in the PT Suka Jaya Makmur is only focusing on timber utilization, while the non-timber forest products is one of potential forest product that increase company's revenue and the welfare of community around forest. The purpose of this research is to make simulation model of timber product management and non-timber forest product utilization is not the time to predict the revenue of company and community with a variety of forest management scenarios. Simulation modeling in this study is using system modeling approach. System modeling is using complex component from the real world and it is simplified so that it can be modeled for a particular purpose. Based on the simulation results, the best scenario is scenario modeling 3 because it produces the greatest revenue. Scenario 3 about the company is managing timber and non-timber forest products as well as a community as worker. Income is earned by the company until the end of the concession period in 2054 if managing timber and non-timber is Rp 447 614 560 712 while the community revenue is Rp 180 852 937 with the average income/family is Rp 10 114 117/year.
Keyword: Bogor Agricultural University (IPB), revenue, simulation models, non-timber forest products

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: Enteric Collibacillosis Pada Anak Babi Baru Lahir: Patogenesa dan Perubahan-Perubahan Patologisnya
Abstrak: Diare disebabkan oleh infeksi bakteri Escherichia coli pada anak-anak babi baru lahir yang peka terhadap en terotoksin produk bakteri tersebut. Dikenal sebagai colibacillosis. Patogenesa dari colibacillosis anak babi baru lahir adalah (1) infeksi oleh E. coli patogen, (2) proliferasi E. coli di lumen usus halus, (3) produksi dan pelepasan enterotoksin, dan (4) aktifitas toksin pada usus halus. Dalam proses proliferasi, adanya antigen pili K88 sangat penting karena memungkinkan bakteri perlekatan dengan epitel mucosa usus halus. mengadakan Setelah ko lonisasi dan proliferasi segera toksin dilepaskan. Akti- fitas toksin menginduksi sekresi yang berlebihan dari u- sus sehingga banyak cairan yang dikeluarkan ke lumen usus. Hal ini mengakibatkan banyak cairan dan elektrolit hilang sehingga timbul diare, dehidrasi dan asidosis yang sering menyebabkan kematian. Perubahan-perubahan patologis yang umum adalah dis tensi usus halus, dilatasi lambung dan infark pada kurva- tura mayor. Perubahan-perubahan histologis yang terjadi adalah enteritis hemorrhagica acuta, oedem dan kongesti pembuluh darah di lamina propria, akumulassi leukosit inti polimorf, sel monosit, dan inti sel mengalami piknosis Thrombus pada vena dan degenerasi serta desquamasi sel epitel usus….
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