Judul: Analisis Sosial Ekonomi Pemanfaatan Kawasan HUtan Lindung Mangrove dengan Sistem Tambak Tumpangsari yang Berkelangsungan (Kasus: RPH Cibuaya, BKPH Cikiong, KPH Purwakarta
Abstrak: Mangroves have degradation that one of it's caused by forest conversion to fishponds. RPH Cibuaya adopted silvofishery system with classes. Its consist of Class 1 (≥ 80% of mangroves), class 2 (60-80% of mangroves), class 3 (40-59% of mangroves) and class 4 (< 40% of mangroves). This research was conducted to calculate social economic value of silvofishery and shows the mangroves conservation value by rehabilitation. The data were collected by interview, questioner, direct observation and study literature. The data were analyzed with qualitatifely and quandtitafiley by R-C ratio method. Mangroves utility was not influenced by gender, social status and education. Besides use mangroves as fishponds, people use mangroves as firewood (33,33%) and natural ecotourism (26,09%). Highest income is Class 4 which is manage intensively. The seeds growth aren't disturbed by dirty water and badsmell because of less vegetation. That be one of the advantages from Class 4 besides easy and quickly harvesting (didn't disturbed by mangroves root). Because of Class 4 domination, causes the forest damage, such as cutting the vegetation or much fertilizing)
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Judul: Analisis sosial ekonomi pemanfaatan kawasan hutan lindung mangrove dengan sistem tumpangsari yang berkelangsungan (kasus: RPH Cibuaya, BKPH Cikiong, KPH Purwakarta)
Abstrak: Hutan mangrove terus mengalami penurunan kualitas surnberdaya, salah satu penyebabnya adalah konversi menjadi lahan tambak. RPH Cibuaya mengadopsi pola siIvoJishery dengan sistem pengkelasan. Pengkelasan terdiri dari Kelas I (mangrove 2 SO%), Kelas II (mangrove 60%-8OQ/o), Kelas III (mangrove 40%-59%), dan Kelas TV (mangrove < 40%). Penelitian dilakukan untuk menghit~ng manfaat sosial ekonomi pengelolaan mangrove-tambak dan menunjukkan nilai konservasi hutan mangrove melalui upaya rehabilitasi. Data dikumpulkan dengan wawancara, pengisik kuesioner, pengamatan langsung dan penelurnran pustaka. Analisis data dilakukan secara kualitatif dan kuantitatif (dengan pendekatan R-C ratio).
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Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test