Judul: Ruminant Livestock Development Model in Tasikmalaya Regency Based on Feed Availability
Abstrak: Tasikmalaya Regency has not yet achieved beef independence because the demand for beef for consumption is higher than its production. Local farmers have not been able to meet these needs due to various factors, namely maintenance management and feed availability. The development of ruminants needs to be improved through the potential of natural resources and human resources so that both are in harmony and able to build beef cattle farms for the better. The purpose of this study was to analyze the natural resources and human resources owned by calculating the capacity factor of ruminant livestock in Tasikmalaya Regency. This study uses primary and secondary data obtained from observations, interviews, and analysis. Primary data was obtained from a survey of 43 beef cattle breeders, while secondary data was obtained from the Department of Agriculture, Food Security, and Fisheries of Tasikmalaya Regency. This study uses descriptive analysis and LQ (Location Quation) analysis, as well as a KPPTR (Capacity to Increase Ruminant Livestock Population) analysis which ends with a SWOT (Strength Weakness Opportunity Threat) analysis. From the results of the descriptive analysis illustrates if the supporting factors in the form of natural resources and human resources are closely related to the development of beef cattle in Tasikmalaya Regency. The results obtained through LQ analysis from 39 sub-districts there are 25 sub-districts with LQ<1 and 14 sub-districts with LQ>1, so it can be concluded that the 25 sub-districts are base areas with great potential for development areas, while the remaining 14 subdistricts are areas non-base with less potential for development areas. From the KPPTR analysis, it was found that the effective KPPTR value was 209,184.90 ST which illustrates that in Tasikmalaya Regency it is still feasible to add livestock according to the effective KPPTR value. SWOT analysis of internal and external factors obtained results in the form of group I with a KPPTR + value, LQ> 1 and group III with a KPPTR value -, LQ> 1 getting an aggressive strategy position that has high strengths and opportunities, while group II with a KPPTR + value, LQ<1 and group IV with KPPTR value -, LQ<1 are in a
Keyword: beef cattle, KPPTR, Tasikmalaya Regency

Judul: Analisis Bionomika Dalam Perencanaan Pembangunan Wilayah Peternakan Ruminansia Di Kabupaten Tasikmalaya
Abstrak: Komoditas peternakan, khususnya ternak ruminansia secara umum berada di perdesaan yang terkait dengan sumberdaya alam sesuai dengan bionomikanya, yang terdiri dari tiga komponen utama yaitu lahan, ternak dan pakan. Ruang lingkup penelitian ini adalah pada aspek biofisik dan manajemen sumberdaya lingkungan dalam pembangunan wilayah melalui pengembangan komoditas ternak ruminansia. Tujuan penelitian ini adalah mengkaji aspek-aspek bionomika dalam perencanaan pembangunan wilayah peternakan ruminansia terutama untuk menetapkan wilayah prioritas pengembangannya. Metode analisis yang digunakan adalah metode Location Quotion (LQ), analisis potensi sumberdaya pakan dan kapasitas tampung serta karakteristik usaha dan tingkat pendapatan peternak. Populasi ternak ruminansia di Kabupaten Tasikmalaya adalah 127.847,89 satuan ternak (ST) yang terdiri dari sapi potong 50.137 ST, sapi perah 2.106,00 ST, kerbau 13.568,85 ST, kambing 47.55,80 ST and domba 14.482,24 ST. Karakteristik usaha masih bersifat semi intensif dengan kelembagaan usaha berbentuk kelompok atau gabungan kelompok peternak. Rata-rata pendapatan peternak dari usaha peternakan adalah sebesar Rp. 2.678.619,- per satuan ternak per tahun dengan Return on Investment (ROI) paling baik pada komoditas kerbau (152,92%) dan kambing (87,40%). Terdapat enam kecamatan yang merupakan wilayah basis untuk sapi potong (Cipatujah LQ=1,62; Karangnunggal LQ=1,16; Cikalong LQ=1,13; Pancatengah LQ=1,38; Cikatomas LQ=1,40), satu kecamatan (Pagerageung LQ=10,23) sebagai wilayah basis sapi perah, empat kecamatan (Cipatujah LQ=1,36; Karangnunggal LQ=1,22; Culamega LQ=1,05; dan Cigalontang LQ=1,02) sebagai wilayah basis kerbau, tiga kecamatan (Leuwisari LQ=1,20; Sariwangi LQ=2,23; dan Cigalontang LQ=1,22) sebagai wilayah basis kambing, dan tidak ada wilayah basis ternak domba. Potensi pakan hijauan sebanyak 801,202.62 ton bahan kering (BK) yang menyebar di seluruh kecamatan, terutama di wilayah basis. Kapasitas tampung wilayah sebesar 341.174.08 ST untuk ternak ruminansia dan dapat ditingkatkan sebanyak 213.326.19 ST atau sekitar 160% dari populasi yang ada saat ini. Wilayah prioritas pengembangan ternak ruminansia secara umum masih mengarah pada wilayah selatan Kabupaten Tasikmalaya, terutama di wilayah basis. Namun demikian, lokasi-lokasi non basis dapat dijadikan prioritas kedua untuk pengembangannya sesuai dengan kapasitas tampung wilayahnya dan daya dukung potensi produksi pakan hijauan. Pemerintah Kabupaten Tasikmalaya perlu mendorong kebijakan pengembangan wilayah ternak ruminansia melalui penetapan kawasan sentra peternakan dengan komoditas unggulannya sesuai komoditas basis, peningkatan ketersediaan infrastruktur dasar berupa lahan sebagai basis ekologi ternak, sumberdaya manusia, kelembagaan dan sarana penunjang lainnya.
Keyword: bionomika ternak, ruminansia, wilayah pembangunan

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4