Judul: Evaluation of Beef Cattle Artificial Insemination (AI)  Program in Garut Regency
Abstrak: Peningkatan jumlah penduduk akan diikuti dengan meningkatnya jumlah konsumsi pangan, salah satunya permintaan terhadap daging sapi. Namun, penyediaan daging dan konsumsi protein dari ternak masih sangat rendah. Sehingga peternak perlu meningkatkan produksi daging untuk pemenuhan protein hewani bagi masyarakat. Kegiatan inseminasi buatan pada ternak di Indonesia terus dilakukan dalam rangka meningkatkan kualitas, populasi dan produksi ternak. Penelitian ini bertujuan mengevaluasi tingkat keberhasilan inseminasi buatan pada sapi potong sebagai evaluasi pelaksanaan program inseminasi buatan di Kabupaten Garut berdasarkan data service per conception (S/C), conception rate (CR), dan calving rate (CvR). Data yang digunakan merupakan data sekunder yang diperoleh dari Dinas Perikanan dan Peternakan Kabupaten Garut dalam kurun waktu 2019- 2020. Hasil penelitian menunjukkan bahwa nilai S/C, CR dan CvR berturut-turut 1,52 1,69, dan 78% 79%, serta 46% 64%. Dari hasil tersebut dapat disimpulkan bahwa pelaksanaan program Inseminasi Buatan (IB) di Kabupaten Garut dilihat dari nilai S/C dan CR melebihi pencapaian skala nasional, namun nilai angka kelahiran (CvR) memiliki persentase yang rendah dikarenakan faktor penjualan betina bunting yang masih tinggi dan permasalahan dalam pendataan kelahiran., The increase in population will be followed by an increase in the amount of food consumption such as beef. However, the supply of meat and protein consumption from livestock isstill very low.Therefor farmers need to increase meat production to fulfill the demand of animal protein. Artificial insemination activities in livestock in Indonesia conducted in order to improve the quality, population and production of livestock. This study aimed to evaluate artificial insemination program in Garut Regency based on data on service per conception (S/C), Conception rate (CR), and calving rate (CvR). The secondary data from the Garut Regency Fisheries and Livestock Service in the 2019-2020 period was used in this study. The results showed that the values of S/C, CR and CvR were 1.52 1.69 and 78% 79% and 46% 64%, respectively. It can be concluded that the implementation of the Artificial Insemination (IB) program was achieved of national target, based on the value of S/C and CR. However,the number of calving rate (CvR) still in low percentage due to the high sales factor of pregnant females and problems in birth registration.
Keyword: CR, CvR, evaluasi, S/C, sapi potong, beef cattle, evaluation, IB

Judul: Evaluasi Keberhasilan Pelaksanaan Program Inseminasi Buatan (IB) Sapi Potong di Provinsi Kalimantan Selatan
Abstrak: Meningkatnya 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 melalui evaluasi pelaksanaan program IB di Provinsi Kalimantan Selatan dilihat dari service per conception (S/C) dan conception rate (CR). Data yang digunakan merupakan data sekunder yang diperoleh dari Dinas Perkebunan dan Peternakan Provinsi Kalimanan Selatan dalam kurun waktu 2011-2015, meliputi target dan realisasi pelaksanaan IB, target dan realisasi kelahiran, serta perhitungan S/C dan CR. Data yang terkumpul dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa rataan S/C dan CR dari tahun 2011-2015 berturutturut 1.5 dan 66.4, 1.12 dan 63.1, 2.0 dan 64.9, 1.6 dan 67.6, 1.7 dan 66.3. Dapat disimpulkan bahwa pelaksanaan program IB di Kalimantan Selatan masih berada dalam pencapaian skala nasional.
Keyword: CR, Inseminasi Buatan, Sapi potong, S/C

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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