Judul: Meat Quality Characteristics of IPB-D1 Chicken and the Final Stock from Different Locations, Physical, Chemical, Microbiological and Organoleptic Quality of IPB-D1 Chicken Meat and Its Final Stock from Various Locations
Abstrak: Peningkatan permintaan masyarakat akan protein hewani mendorong lahirnya berbagai inovasi terkait pengembangan jenis atau bangsa baru ternak. Upaya peningkatan produktivitas ayam lokal dengan penelitian serta pengembangan terus dilakukan dan salah satu hasilnya adalah Ayam IPB-D1. Keberhasilan suatu inovasi untuk diterima dan berkembang di masyarakat dipengaruhi oleh banyak hal, salah satunya adalah persepsi masyarakat. Persepsi ini sangat berperan penting dalam menentukan suatu inovasi dalam hal ini ayam IPB-D1 bisa diterima oleh masyarakat luas, dan dapat terus dikembangkan sampai tahap industri. Pemeliharaan ayam IPB-D1 dilakukan di Kabupaten Sukabumi dan Kabupaten Bekasi. Pengujian kualitas fisik, kimia dan mikrobiologi dilakukan di Laboratorium IPTP Terpadu dan Laboratorium Mikrobiologi Hasil Ternak, Fakultas Peternakan IPB. Pengujian organoleptik dilakukan di Ruang Organoleptik, Fakultas Peternakan IPB. Penelitian dilaksanakan pada Februari 2022 sampai Juni 2022. Ruang lingkup penelitian ini mencakup pemeliharaan ayam yang dilaksanakan pada 2 (dua) lokasi berbeda dan pengambilan sampel yang bertujuan untuk pengujian kualitas fisik, kimia, mikrobiologi dan organoleptik. Masing-masing jenis ayam menggunakan 15 ekor. Pada tiap lokasi tersebut pengambilan sampel dilakukan sebanyak 10 kali sebagai ulangan. Teknik pengambilan sampel yang digunakan adalah simple random sampling. Hasil penelitian menunjukkan Kualitas daging ayam IPB-D1 dan Final Stocknya tidak memiliki perbedaan nyata dalam aspek kualitas fisik yang berupa pH dan daya mengikat air (DMA), namun memiliki susut masak yang lebih rendah serta keempukan yang lebih empuk dibanding ayam kampung, dan ayam sentul. Kandungan kualitas kimia yang tinggi pada proksimat berupa kadar abu, lemak, dan protein. Selain itu, memiliki kandungan mineral yang tinggi namun tetap rendah kolesterol. Analisis kualitas mikrobiologi yang berupa total koloni bakteri (total plate count) daging ayam IPBD1 dan Final Stocknya masih dalam Batas Maksimum Cemaran Mikroba (BMCM) yang ditetapkan oleh Badan Standarisasi Nasional Indonesia tahun 2009., The increasing public demand for animal protein encourages the birth of various innovations related to the development of new breeds or breeds of livestock. Efforts to increase the productivity of local chickens with research and development continue to be carried out and one of the results is IPB-D1 Chicken. The success of an innovation to be accepted and developed in society is influenced by many things, one of which is public perception. This perception plays an important role in determining an innovation in this case the IPB-D1 chicken can be accepted by the wider community, and can continue to be developed to the industrial stage. IPB-D1 chicken rearing was carried out in Sukabumi Regency and Bekasi Regency. Physical, chemical and microbiological quality testing was carried out at the Integrated IPTP Laboratory and the Microbiology Laboratory of Livestock Products, Faculty of Animal Science, IPB. Organoleptic testing was carried out in the Organoleptic Room, Faculty of Animal Science, IPB. The research was carried out from February 2022 to June 2022. The scope of this research includes chicken rearing carried out at 2 (two) different locations and sampling that aims to test the physical, chemical, microbiological and organoleptic quality. Each type of uses 15 chickens. At each location sampling was carried out 9 times as replication. The sampling technique used is simple random sampling. The results showed that the quality of IPB-D1 chicken meat and
Keyword: daging ayam IPB-D1, kualitas fisik, kualitas kimia, mikrobiologi, organoleptik

Judul: Morphometrics of IPB-D1, IPB-D2 and IPB-D3 Chickens aged 4 to 12 weeks at Sinar Harapan Farm Sukabumi
Abstrak: Ayam IPB-D1 adalah ayam lokal pedaging unggul hasil pemuliaan. Pengembangan ayam IPB-D1 menghasilkan calon galur ayam IPB-D2 dan IPB-D3. Penelitian mengenai morfometrik ayam IPB-D di Kabupaten Sukabumi belum dilakukan. Penelitian ini bertujuan mengevaluasi morfometrik ayam IPB-D1, IPBD2 dan IPB-D3 di Kabupaten Sukabumi. Rancangan pada penelitian ini adalah Rancangan Acak Lengkap dengan 3 taraf perlakuan galur yaitu IPB-D1, IPB-D2 dan IPB-D3 dengan selang kepercayaan 95%. Perlakuan yang berpengaruh nyata dilanjutkan uji Tukey. Parameter yang diukur adalah bobot badan dan morfometrik seperti panjang shank, lingkar shank, panjang femur, panjang tibia, panjang dada, lebar dada, dalam dada, lingkar dada, dan panjang punggung. Hasil penelitian menunjukkan bahwa ukuran tubuh ayam IPB-D2 dan IPB-D3 berbeda. Ayam IPBD3 memiliki morfometrik yang lebih besar dibandingkan ayam IPB-D2 pada umur 4-8 minggu, namun pada umur 10-12 minggu ayam IPB-D3 memiliki ukuran tubuh yang lebih kecil dibandingkan ayam IPB-D2. / IPB-D1 chicken is a local breeder of superior broilers. The development of IPB-D1 chicken produced the candidate strains IPB-D2 and IPB-D3. Research on the morphometrics of IPB-D chicken in Sukabumi district has not been conducted. This study aimed to evaluate the morphometrics of IPB-D1, IPB-D2 and IPB-D3 chickens in Sukabumi District. The design of this study was a completely randomized design with 3 levels of treatment strains namely IPB-D1, IPB-D2 and IPB-D3 with 95% confidence interval. Treatments that had a significant effect were followed by the Tukey test. Parameters measured were body weight and morphometrics such as shank length, shank circumference, femur length, tibia length, breast length, breast width, breast depth, breast circumference and back length. The results showed that the body size of IPB-D2 and IPB-D3 chickens were different. IPB-D3 chickens have larger morphometrics than IPB-D2 chickens at 4- 8 weeks of age, but at 10-12 weeks of age IPB-D3 chickens have a smaller body size than IPB-D2 chickens., IPB-D1 chicken is a local breeder of superior broilers. The development of IPB-D1 chicken produced the candidate strains IPB-D2 and IPB-D3. Research on the morphometrics of IPB-D chicken in Sukabumi district has not been conducted. This study aimed to evaluate the morphometrics of IPB-D1, IPB-D2 and IPB-D3 chickens in Sukabumi District. The design of this study was a completely randomized design with 3 levels of treatment strains namely IPB-D1, IPB-D2 and IPB-D3 with 95% confidence interval. Treatments that had a significant effect were followed by the Tukey test. Parameters measured were body weight and morphometrics such as shank length, shank circumference, femur length, tibia length, breast length, breast width, breast depth, breast circumference and back length. The results showed that the body size of IPB-D2 and IPB-D3 chickens were different. IPB-D3 chickens have larger morphometrics than IPB-D2 chickens at 4- 8 weeks of age, but at 10-12 weeks of age IPB-D3 chickens have a smaller body size than IPB-D2 chickens.
Keyword: morfometrik, ayam IPB-D1, ayam IPB-D2, ayam IPB-D3, Kabupaten Sukabumi

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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