Judul: Dampak Perubahan Pranata Sosial terhadap Kesejahteraan Petani (Kasus: Pengambilalihan Lahan dan Konversi Tanaman Komoditi)
Abstrak: Case of agricultural land acquisition caused many problems for the people around the area, especially farmers. Currently, land acquisition is usually done by plantation company that aims to convert the existing commodities on that land. Commodity crop conversion has change agricultural social institution in Kumpay Village. There is a clear difference between pinapple farming and palm tree farming. If the pinnaple institution absorb many labors, then palm tree institution not absorb many labors. The change of institution made the most of landless farmers become eliminated. Not only landless farmers, their wife, their children, and pinnaple collectors also eliminated. That matter caused their had to changed their livelihood system. The changes of livelihood system consist of the changes of work opportunity and employement patterns. That changes directly change landless farmer household. Furthermore, the change of agricultural social institution had affected the change of relationship between citizens.
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Judul: Dampak Konversi Tanaman Komoditi terhadap Perubahan Kelembagaan Sosio-Agraria dan Taraf Hidup Pekerja Perkebunan
Abstrak: Konversi tanaman komoditi dapat diartikan sebagai pergantian pada sistem tanam dari satu komoditi tanaman ke komoditi lainnya. Konversi ini merupakan salah satu konversi lahan yang bersifat sementara, lahan beralih fungsi masih dalam sektor pertanian. Seperti yang terjadi di Desa Cigudeg, terjadi konversi tanaman komoditi dari tanaman karet menjadi kelapa sawit pada lahan perkebunan milik negara. Penelitian ini bertujuan untuk menganalisis dampak perubahan kelembagaan sosio-agraria akibat dari konversi tersebut terhadap taraf hidup masyarakat pekerja perkebunan. Metode penelitian yang digunakan adalah penelitian kuantitatif dan didukung analisis kualitatif. Data kuantitatif diperoleh dari dokumen resmi para stakeholder dan survei kepada sampel populasi dengan instrumen kuesioner. Pengambilan sampel dilakukan dengan kombinasi teknik sampel multi stage dan teknik simple random sampling. Hasil penelitian menunjukkan bahwa adanya konversi tanaman komoditi menyebabkan terjadinya perubahan pada kelembagaan sosio-agraria yang selanjutnya mengubah taraf hidup pekerja perkebunan.
Keyword: dampak konversi, kelembagaan sosio-agraria, konversi lahan, taraf hidup

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