Judul: Sifat Karkas dan Daging Sapi Silangan Lokal yang Diberi Ransum Silase dan Konsentrat
Abstrak: The objective of the study was to evaluate carcass and meat traits of local crossbred cattle fed on silage and concentrate based rations. There were 10 animals alloted to 2 level feeding treatments; 5 animals given P1 ration (60% silage + 40% grass) and the other 5 animals given P2 ration (60% concentrate + 40% grass). Data of carcass and meat traits were analyzed using analysis of covarian (ANCOVA) corrected by the weight cut. The results showed that the carcass weight and percentage of local crossbred cattle fed on concentrate ration was higher than silage ration (P<0.05). Carcass weight and percentage of carcass beef fed on ration concentrate is 179.148 ± 1.617 kg and 54.941 ± 0.523% while the carcass weight and percentage of local crossbred cattle fed on silage ration is 172.851 ± 1.617 kg and 54.941 ± 0.523%. However, fat thickness, ribeye area, and meat traits were not significantly affected by such treatment. It was concluded that the local crossbred cattle given silage based ration produced lower carcass weight and percentage but similar fat thickness, ribeye area, and meat quality compared to that given concentrate based ration.
Keyword: silage, meat traits, concentrate, carcass traits

Judul: Perbandingan Potongan Komersial Karkas pada Sapi Silangan Lokal Jantan yang Diberi Pakan Silase dan Konsentrat
Abstrak: Penelitian ini bertujuan untuk membandingkan sebaran daging, lemak, dan tulang pada setiap potongan komersial antara sapi silangan lokal yang diberi perlakuan pakan silase dan konsentrat. Total 10 ekor sapi silangan lokal jantan dengan umur I0-I2 dan rataan bobot awal 252.5 kg. Perlakuan pakan yang digunakan adalah konsentrat dan silase dengan masing-masing 5 ekor ternak untuk setiap perlakuan. Data karakteristik karkas, bobot potongan komersial, dan persentase potongan komersial dianalisis dengan menggunakan Analysis of Covariance (ANCOVA). Data karakteristik karkas dikoreksi terhadap bobot awal. Data bobot dan persentase potongan komersial dikoreksi terhadap bobot potong. Rataan bobot potong sapi yang diberi konsentrat dan silase berturut-turut 332.94 kg dan 319.06 kg. Sapi yang diberi pakan konsentrat menghasilkan persentase karkas dan bobot daging yang nyata lebih tinggi dibanding pakan silase (P<0.05). Rataan persentase karkas sapi yang diberi pakan konsentrat dan silase berturut-turut adalah 54.99% dan 52.90%, sedangkan rataan total bobot daging sapi yang diberi pakan konsentrat dan silase berturut-turut adalah 65.74 kg dan 58.81 kg. Hasil penelitian menunjukkan data potongan komersial tidak berbeda nyata kecuali bobot lemak bagian topside dan brisket sapi dengan pakan konsentrat nyata lebih tinggi (P<0.05) dibandingkan dengan perlakuan pakan silase, serta persentase lemak bagian topside sapi dengan perlakuan konsentrat nyata lebih tinggi dari silase (P<0.05).
Keyword: Characteristic carcass, Concentrate, Commercial cut, Silage, Animal science, Analysis of coveriance, Ancova, Feed treatment

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave