Judul: Performa Induk Kelinci Peranakan New Zealand White dengan Pemberian Pellet dan Silase Ransum Komplit Berbasis Pakan Lokal
Abstrak: Ketersediaan pakan merupakan salah satu faktor penting dalam usaha pemeliharaan ternak disamping faktor pemilihan bibit dan tata laksana pemeliharaan yang baik. Agar kelinci dapat berproduksi tinggi, maka perlu dipelihara secara intensif dengan pemberian pakan yang memenuhi syarat, baik secara kualitas maupun kuantitas. Pakan kelinci pada umumnya adalah hijauan atau pellet. Permasalahan pada penggunaan rumput adalah kurangnya asupan nutrien sehingga kelinci tidak dapat berproduksi dengan maksimal. Kendala dari penggunaan pellet adalah proses pembuatannya membutuhkan alat-alat yang relatif mahal sehingga akan memberatkan peternak. Oleh karena itu dibutuhkan alternatif lain agar dapat mengurangi biaya pembuatan pakan kelinci tersebut. Silase ransum komplit adalah alternatif pengolahan pakan yang cukup baik. Silase ransum komplit dapat memenuhi kebutuhan gizi ternak dan memiliki sifat organoleptik (bau harum, asam) sehingga lebih disukai ternak (palatabel). Penelitian ini bertujuan untuk membandingkan performa reproduksi induk kelinci peranakan New Zealand White yang diberi silase ransum komplit dan pellet ransum komplit meliputi persentase kebuntingan, lama kebuntingan, jumlah anak per kelahiran (litter size), jumlah bobot anak per kelahiran (litter weight) dan bobot lahir individu anak. Ternak yang digunakan sebanyak 12 ekor kelinci betina peranakan New Zealand White umur 6 bulan dengan rataan bobot hidup 1696,33±109,92 g. Dalam penelitian ini digunakan rancangan acak lengkap (RAL) dengan dua perlakuan dan 6 ulangan. Perlakuan pertama adalah pellet ransum komplit (R1) dan yang lain adalah silase ransum komplit (R2). Data konsumsi ransum (BK, PK, SK, LK, BETN), pertambahan bobot badan dan efisiensi ransum dianalisis menggunakan sidik ragam (ANOVA) dan apabila terjadi perbedaan yang nyata dilakukan analisis uji t, sedangkan data persentase kebuntingan, lama kebuntingan, bobot lahir, jumlah anak per kelahiran dan jumlah bobot anak per kelahiran dianalisis secara diskriptif.
Keyword: complete Silage ration, feed availability, rabbit reproductive performance, complete pellet ration, pregnancy percentage, long gestation, litter size, litter weight

Judul: Performa Kelinci Potong Jantan Lokal Peranakan New Zealand White Yang Diberi Pakan Silase Atau Pelet Ransum Komplit
Abstrak: Complete ration silage has never been used in rabbits farm industry. Therefore, it is necessary to evaluate the quality in an attempt to reach feed security. The aim of this study was to compare and analize the effect of feeding complete ration silage on the performance of rabbits. This research used two diet treatments with six replications, each of which consisted of 6 rabbits with body weight of 1375.28 g ± 204.52. The treatments were complete ration pellet (R1) and complete ration silage (R2). The data obtained were analyzed using t-test. The result showed that the treatments significantly (P<0.01) affected feed consumption and body weight. The average feed consumption of New Zealand White was 824.49 ± 51.04 for complete ration pellet (R1) and 645.74 ± 19.16 for complete ration silage (R2). The average body weight for complete ration pellet (R1) was 1906.45±135.80 and it was 1663.15 ±110.07 for complete ration silage (R2). However, the treatments did not significantly influence daily weight gain, feed efficiency, carcass percentage and fat thighs. It can be concluded that complete ration silage has similar quality to complete ration pellet in terms of affecting performance of rabbits.
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Judul: Tinjauan Matematis pada Model Makroskopik dan Mikroskopik Arus Lalu-lintas
Abstrak: Traffic flow phenomenon can be described through mathematical model such as continuous dynamic model with an ordinary differential equation so that it can be solved with integral factors. In this paper three simple models of traffic flow are discussed, i.e, two macroscopic and one microscopic models. Macroscopic model formulates dynamics of the traffic flow that occurs on a large number of vehicles on a road. While the microscopic model explains drivers’ behavior in their interaction with other vehicles ahead, i.e, car-following model. This paper shows the existence of ordinary differential equation found in the traffic flow model and indicates some different representations in the context of the same model. It also reviews a simple model of traffic flow along a single link, which leads to some unexpected results, i.e, it can express the solution model in term of link outflows as well as trip time. In the microscopic model, simulation is done to illustrate the behavior of the drivers with a sensitivity coefficient as a benchmark parameter.
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