Judul: Evaluasi Keberhasilan Pelaksanaan Program Inseminasi Buatan (IB) pada Sapi Potong di Kota Sawahlunto
Abstrak: Study in investigating the technical and socio-economic conditions that may affect the successful implementation of Artificial Insemination (AI) program were done in Sawahlunto July 2011 to September 2012. This study was conducted through interviews with survey methods in the form of questionnaires to 44 farmers and 16 inseminators. This study aimed to determine the factors that could affect the successful implementation of the AI program. The results of the study showed that most farmers had low level of education and experience. Raising beef cattle only as a side job, with the majority of main jobs as farmers and cattle ownership below 5 heads. Animal husbandry technique applied by most breeders was a semiintensive and a small portion was applied extensively. Experience of inseminator on duty was low and half of inseminator did not have a License in Performing Artificial Insemination (SIMI). Working system of inseminator has been performed well, but the working capability still less. The success rate of implementation of the AI program were assessed from the number of services per conception (S/C) and conception rate (CR) had been good, but the value of calving interval (CI) still low. Factors that influence the success rate of implementation of the AI program was raising experience and farming system which in use, while the level of education and participation of farmers had no effect
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Judul: The Reproductive Profile of Beef Cattle Acceptor in the Artificial Insemination Program (AI) in Bekasi Regency
Abstrak: Seiring bertambahnya jumlah penduduk maka semakin meningkat pula tingkat konsumsi masyarakat akan protein hewani. Permintaan daging sapi oleh konsumen tidak diimbangi dengan jumlah populasi sapi potong di Indonesia. Kegiatan inseminasi buatan (IB) di Indonesia terus dilakukan guna meningkatkan populasi, mutu, dan produksi ternak sapi. Penelitian ini bertujuan untuk mengetahui tingkat keberhasilan IB pada sapi potong sebagai evaluasi pelaksanaan program IB di Kabupaten Bekasi dilihat dari service per conception (S/C) dan conception rate (CR). Data yang digunakan merupakan data sekunder yang diperoleh dari Dinas Pertanian Kabupaten Bekasi pada tahun 2018 dan 2019 laporan program IB, laporan pemeriksaan kebuntingan, serta perhitungan S/C dan CR. Data yang diperoleh dianalisis secara deskriptif komparatif berdasarkan hasil olahan program Microsoft Excel 2013. Hasil penelitian menunjukkan bahwa rata-rata S/C pada tahun 2018 sebesar 1,3 dan tahun 2019 sebesar 1,1, kemudian untuk CR pada tahun 2018 yaitu sebesar 76,96% dan tahun 2019 sebesar 91,11%. Disimpulkan bahwa pelaksanaan IB di Kabupaten Bekasi dapat diklasifikasi berhasil karena melampaui target skala nasional., As the civil population increases, so does the level of public consumption of animal protein. The consumers’ demand on beef was not equal with the number of beef cattle population in Indonesia. The Artificial Insemination (AI) activities in Indonesia were continuously carried out in order to increase the population, the quality, and the production of beef cattle. The aims of this research are to determine the success rate of AI in beef cattle as the evaluation of the implementation on the AI program in Bekasi Regency as seen from the Service per Conception (S/C) and Conception Rate (CR). The data used was secondary data obtained from the Agriculture Office of Bekasi District in 2018 and 2019, AI program reports, pregnancy reports, and calculation of S/C and CR percentage. The data obtained were analyzed descriptive -comparatively based on the results of the Microsoft Excel 2013 program. The results showed that the average S/C in 2018-2019 was 1,3 and 1,1. For the CR in 2018-2019 was 76,96% and 91,11%. The AI Implementation in Bekasi district can be classified succeed because it can exceed the national scale target.
Keyword: AI, beef cattle, CR, S/C

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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