Judul: Analisis Ekonomi Pengembangan Domba Garut Berbasis Daya Dukung Pakan Hijauan di Kecamatan Cikajang Kabupaten Garut
Abstrak: Garut known as sheep farm centers. One of sheep farm centers in Garut is District of Cikajang. The increament capacity of ruminant livestock population (KPPTR) showed that Cikajang thread over population by 4 264.01 AU. It meaned they have to find out another pasture to fulfilled the animal need. Their farms maintained traditionally. By using income analys (R/C), they lost Rp 8 143 164.81. By using benefit cost analys (ABM) showed that to develop the business take 10 years. The result of invesment (5.57%), NPV is Rp 86 541 955.96, Net B/C is 3.37, IRR is 26.21% and the payback periods is 17 months. While using capital loan (12%), NPV is Rp 47 258 120.28, Net B/C is 2.58, IRR is 18.96% and payback periods is 16 months.
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Judul: Analisis Efisiensi Produksi dan Tingkat Pendapatan Peternak Sapi Perah di Desa Cibodas, Kecamatan Cikajang, Kabupaten Garut
Abstrak: There are two dairy farmer groups in Cibodas area which are also joined theKoperasiPeternakGarut Selatan (KPGS) Cikajang. The dairy farmers are mostly smallholders, thus the dairy farms are still being maintained traditionally. Therefore, to achieve the maximum profit, the farmers should arrange the production factor allocation efficiently. Therefore, it is interesting to see as also analyzed by the writer, the farmers’ characteristics, production efficiency analysis, and the degree of income analysis. This study uses the descriptive analysis to identify the farmers’ characteristics, the double linier regression which further is being transformed into the natural logarithm form, the farmers’ degree of income analysis, and the optimum input usage analysis. The study is resulting evidences that the dairy farmers in KPGS are dominated by men, with the average age is 41-50 years old, farmers are typically finished their elementary school, with the dairy farming experiences are 11-20 on average, and the owned dairy cows are 1,8 ST. The degree of income analysis shows that with 1,8 ST owned cows per farmer, the dairy business has already profitable. The regression analysis shows that the usage of feed, concentrate, and water are significantly influenced the model with 5 percent alpha, while the worker factor is not significantly proven to influence the model. The optimum input usage analysis shows that input usage has not been optimally used in Cibodas Area, it is showed by the NPM/BKM ratio of each input is not equal with one.
Keyword: Bogor Agricultural University (IPB), optimum input, production factor, milk production, cooperative

Judul: Karakteristik Carboxymethyl Chitosan Dengan Variasi Konsentrasi NaOH
Abstrak: Carboxymethyl chitosan is chitosan derivative product obtained from chemical modification. CMCh were made by alkalization process and carboxymethylation process. Factors that affect CMCh characteristics were excess sodium hydroxide in alkalization process, ratio between chitosan and monochloroacetic acid, and carboxymethylation temperature. The objectives of this research were to study the NaOH effect to CMCh characteristics, to learn process of making CMCh, to set the proper concentration of NaOH, and to analyze CMCh characteristics. CMCh yields were 110.72%-114.22%. CMCh pH value were 3.74-4.31. The optimum NaOH concentration to obtain the best CHCh was 10 M. Percentage of CMCh moisture content was 10.70%-11.42%. Ash content and nitrogen content of CMCh were 0.49%-0.50% and 4.52%-4.81%. CMCh viscousity was 8.25 cps. Percentage of CMCh solubility was 61.61%-91.50%. The different functional groups from chitosan which observed in CMCh were C=O group, CH group from alkene functional group, C−O group, and C−O−C group.
Keyword: solubility., functional group, CMCh characteristics, chitosan, carboxymethyl chitosan