Judul: Evaluasi Penerapan Sistem Pemotongan Ditinjau dari Keamanan dan Kehalalan Daging pada Tempat Pemotongan Kambing di kota Jambi
Abstrak: Food of animal origin such as a meat, milk, egg and processed product are perishable and potentially for biological hazard, chemical, and physical known as Potentially Hazardous Food (PHF). Hence, handling of this product must be good and true. There are several steps that determine the quality and safety of meat in their supply chain, one of which is the stage of salughtering in slaughterplaces. The objective of this study to evaluate the application of slaughtering (Good Salughtering Practice), Halal Assurance System (HAS), and meat safety at goat slaughterplaces in Jambi city that term of microbiological contamination, heavy metals contamination and organofosfat pesticide residues. The study used a descriptive, randomized sampling of livestock numbers slaughtered at slaughterplaces in Jambi city. Evaluation of physical quality of the meat (pH, color, and water holding capacity), microbial contamination (TPC, E.coli, coliform, Salmonella sp, and Staphylococcus) contamination of heavy metals (Pb, Cd, and Hg) and pesticide residues organofosphat. The sample used for the analysis of physical and microbial contamination is the leg, whereas the sample used for the analysis of heavy metals and pesticide residues are leg, liver and kidney. The GSP implementations at all of slaugtherplaces in Jambi city has not been done to maximum. This is proved from ten assessment characters of East Jambi, Telanaipura, and Jambi Market Slaugtherplaces can be able to meet 58.00%, 57.50%, 58.00% respectively. SJH parameters were evaluated largely unmet. East Jambi, Telanaipura, and Jambi Market Slaugtherplaces was carry of SJH by 47.50%, 49%, 45.50% respectively. The value of meat goats pH is still within the range of normal meat pH (5.75 and 5.92) at all of goat slaughterplaces. The Water Holding Capacity (WHC) on ranges (37.58% - 42.56%) and color of meat goats on ranges (6.5 - 7.5) are included in the Quality II with dark red color. Microbiological contamination, especially E. coli and coliform in meat goats was exceed the maximum limit according to Indonesian National Standard 3925: 2008. E. coli exceeded the maximum found at East Jambi and Telanaipura Goat Slaughterplaces. Coliform exceeded the maximum limit found at all of goat slaughterplaces. The meat, liver and kidney goats in Jambi city showed undetectable residues of heavy metals, but the meat and kidney goats contaminated by organophosphate pesticide residues of dikhlorfos and profenofos groups. All of samples that positive were contaminated demonstrate the value of which does not exceed the maximum limit determined by Indonesian National Standard 7317:2008 about contamination limits organophosphate pesticide residue groups are 0.05 ppm.
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Judul: Implementation Management System on Slaughterhouse Category I as an Effort to Fulfill Safe Requirements Meat Product
Abstrak: Rumah potong hewan harus menghasilkan daging yang memenuhi syarat aman, sehat, utuh, dan halal. Persyaratan keamanan dasar yang harus diperhatikan pada saat proses produksi yaitu penerapan sistem manajemen terutama higiene dan sanitasi baik itu fasilitas/peralatan maupun higiene personal serta sumber daya manusia yang berwenang di rumah pemotongan hewan (RPH). Tujuan dari penelitian ini adalah untuk mengevaluasi penerapan higiene dan sanitasi supaya menjamin keamanan daging sapi yang dihasilkan dari RPH Kategori I Kabupaten Bogor. Pengamatan terhadap pelaksanaan higiene sanitasi dilakukan dengan menggunakan matriks evaluasi kesesuaian persyaratan fisik dengan metode penilaian parameter kriteria berdasarkan Peraturan Menteri Pertanian Nomor 13/2010. Nilai kesesuaian (NK) yang diperoleh berdasarkan matriks evaluasi adalah prosedur pemotongan sebesar 236 (sesuai), sumber daya manusia sebesar 135 (tidak sesuai), dan persyaratan fisik sebesar 215,5 (kurang sesuai). Hasil pengujian pada daging untuk kandungan Salmonella sp. negatif dan uji TPC antara 7,1 × 103 - 5,2 × 104 cfug-1 di bawah ambang batas SNI yaitu 1,0 × 106 cfug-1. Pengujian Escherichia coli pada daging berada di atas ambang batas diduga karena kontaminasi dari air yang digunakan. Validasi praktik higiene sanitasi dilakukan dengan cara swab Coliform pada pisau, telapak tangan dan pakaian petugas. Uji colliform swab telapak tangan petugas yaitu 5,4 × 102 cfug-1 menunjukkan nilai diatas ambang batas yang diperbolehkan. Hasil evaluasi penerapan sanitasi dan higiene di RPH sudah cukup baik namun masih perlu perbaikan. Perbaikan yang diprioritaskan adalah peralatan fasilitas kebersihan, pengujian kualitas air dan peningkatan pemahaman personal higiene.
Keyword: abattoirs, hygiene sanitation, microbial contamination

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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