Judul: Sistem Pemasaran dan Nilai Tambah Produk Olahan Ubi Jalar (Ipomoea batatas, L.) di Desa Cikarawang dan Desa Petir, Kecamatan Dramaga, Kabupaten Bogor
Abstrak: Sweet potato is a source of carbohydrat and protein, relatively inexpensive for consumption. The farmers had high dependency to the middleman, the lack of market access and price information in farmer’s level lead the bargaining position of the farmers low, and the activity of sweet potatoes processing. Therefore, the research is conducted to determine the marketing systems and value-added of processed sweet potato product. The objective of this research is to analyze the agency and functions of marketing, marketing channel, market structure and market behavior; to analyze marketing margin, farmer’s share, and the ratio of benefits to costs; to calculate value-added of dumpling, flour, and cracker. Data collection was held by observation and interviews to the farmers and entrepreneurs of processed sweet potato products in the Cikarawang village and Petir village by purposive sampling method, whereas for the marketing agency data collection was held by following the flow of information from the previous marketing agency and purposive sampling. The results are shown that the third channel was relatively efficient to distribute grade A and B sweet potato, while the first channel was relatively efficient to distribute grade C sweet potato. The results of value added analysis of processed sweet potato products have shown that the value added ratio and profit level of dumpling was the highest than other processed sweet potato products.
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Judul: Analisis Corak Pengembangan Usaha Tani Ubi Jalar Serta Faktor-Faktor yang Mempengaruhinya (Studi Kasus Desa Cikarawang dan Desa Purwasari Kecamatan Dramaga Kabupaten Bogor)
Abstrak: The massive growth of sweet potato downstream industries in Indonesia has triggered the excalation of sweet potato availability as derivated product ingredient. Almost seventy percent of national sweet potato production was processd by industries. It leads to sweet potato intensification to increase its level of commercialization. However the uneven distribution of Indonesia economy contribution leads to a different infrastructure and market accessibility development. This study that was conducted in two villages namely Cikarawang and Purwasari aimed to identify the level of commercialization of sweet potato farming due to differences in infrastructure and market accessibility and to analyze the factors that affect the level of commercialization of sweet potato farming. Cikarawang has a closer market accessibility and better infrastructure than Purwasari. The result showed that level of commercialization of sweet potato farming in Cikarawang higher than level of commercialization of sweet potato farming in Purwasari (60.58 persent for Cikarawang and 49.84 persent for the Purwasari ). This indicated that the level of commercialization of swet potato farming was determined by infrastructure and market accessibility. The significant factor that influence level of commercialization of sweet potato farming in both two villages are land , farmer family size, and the price of sweet potato.
Keyword: sweetpotato., market accessibility, level of commercialization, infrastructure, Bogor Agricultural University (IPB)

Judul: Psittacosis Sebagai Zoonosis Penting Yang Berasal Dari Burung
Abstrak: Psittacosis atau ornithosis adalah penyakit menular dari burung kepada manusia. Agens penyebab psittacosis termasuk ke dalam virus psittacosis-lymphogranuloma venereum group yang disebut Chlamydia psittaci. C. psittaci hanya dapat berkembang biak di dalam jaringan hidup tetapi peka terhadap antibiotik. Penyebaran penyakit ini sangat luas, terdapat hampir di seluruh dunia. Di Indonesia penyakit ini belum pernah di diagnosa, tetapi mengingat terdapat demikian banyaknya jenis burung maka diperkirakan psittacosis ini sudah ada. Kasus pada manusia pertamakali ditemukan oleh Ritter pada tahun 1879, di Eropa. Waktu itu dikenal sebagai pneumotyphus. Chlamydia psittaci tidak hanya sebagai penyebab infeksi pada burung, juga bisa menyebabkan infeksi pada mamalia diantaranya sapi, kerbau, kambing, domba, babi dan kucing. Pada kucing dikenal sebagai feline pneumonitis. Pada domba atau kambing mengakibatkan enzootic abortion. Pada burung, kalkun merupakan unggas paling rentan diikuti oleh burung psittacine dan burung lain di luar famili psittacidae. Virulensinyapun berbeda-beda. Yang berasal dari kalkun bervirulensi tinggi, sedangkan yang berasal dari burung merpati bisa bervirulensi tinggi bisa juga bervirulensi rendah. Penularan terjadi melalui kontak langsung maupun ti- dak langsung. Penularan melalui telur tidak terjadi. Umumnya penyakit ini memperlihatkan gejala klinis berupa deman, lesu, lemah, anorexia, kurus, diarrhea ber- warna kekuningan, discharge dari mata dan hidung, conjunc- tivitis. Gejala khas pada kalkun adalah istirahat dengan sternum sebagai dasarnya, karena adanya tekanan dari bagian perut yang sakit. Sedangkan pada manusia memperlihatkan adanya demam, kadang-kadang merasa dingin, lesu, sakit kepala yang hebat, sakit pada bagian belakang badan dan photophobia…dst
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