Judul: The Substitution of Soybean Meal by Butterfly Leaf (Bouhinia purpurea L.) in Ration Kind of Pellet Towards Male Rabbit off Weaning Performance.
Abstrak: The high quality ration supply has getting hindrance because influence of the price of ingredients are expensive, mainly the protein source like soybean meal. In Indonesia the supply of soybean meal is under requisites because of that we still import it, which made the price, are expensive. Because of the reason, we need to, find alternative ingredients, which came from forage. Why, because rabbit can used protein from forage efficiently. The Butterfly leaf is one of kind leguminous which can be useful for feed because the contain of crude protein is 23.34%, but the butterfly leaf contain 1.82% tannin which can caused feed restriction factor, because of that needed attention to utilize of butterfly leaf
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Judul: Dry Matter Digestibility, Protein Digestibility and Nitrogen Retention of Weaning Local Male Rabbit on Substitution Soybean Meal with Bauhinia pururea L.
Abstrak: Bauhinia purpurea L. is a potential legume for rabbit fodder, it contains protein 21.l3%. Rabbit is one of a meat source originating from animal. because rabbit is a prolific animal and easy to rared. Twenty five weaning local male rabbit with average body weight 853 ± 117 gram were used. The aim of this experiment are to recognize the Bauhinia purpurea L. effect that may subtitute soybean meal as a source protein, by detennining the dry matter digestibility, protein digestibility ang nitrogen retention. Completely Randomized Design was used in the experiment. It consisted of five treatments and four replications. The composition of the treatment rations were soybean meal, Bauhinia purpurea L. and concentrate 60%(yellow com 24%, rice brand 12%, wheat brand 20%, coconut oil 2%, CaC03 1% and premix 1%). The ratio of soybean meal: Bauhinia purpurea L. in the diet were (Rl) 40%:0%, (R2) 30%: \0%, (RJ) 20%:20%, (R4) 10%:30% and (RS) 0%:40%. The result showed that the treatment did not significant influence dry matter digestibility, protein digestibility and nitrogen retention. Bauhinia purpurea L. can be used until 40% in the rabbit ration. Key word : Bauhinia purpurea L., soybean meal, dry matter digestibility, protein digestibility, nitrogen retention
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Judul: Evaluasi Kondisi Bangunan Bersejarah Masjid Agung Demak
Abstrak: Masjid Agung Demak merupakan bangunan bersejarah yang memiliki arti penting bagi perkembangan agama islam di pulau Jawa. Sebagian besar komponen bangunan masjid yang digunakan merupakan kayu. Tujuan penelitian ini adalah mengevaluasi kondisi bangunan bersejarah Masjid Agung Demak melalui identifikasi visual serta analisis struktur bangunan terhadap ketahanan gempa. Identifikasi bangunan dilakukan pada beberapa bagian ruang utama seperti atap, langit-langit, rangka dinding, dinding, kusen, lantai, pondasi, drainase, dan utilitas. Selanjutnya analisis struktur bangunan dilakukan dengan memodelkan struktur dalam portal 2D menggunakan software berbasis elemen hingga (Finite Element Methode). Struktur dianalisis dengan mengguanakan metode dinamik riwayat waktu (Time History Analysis). Hasil penilaian kondisi bangunan melalui identifikasi visual menunjukkan nilai kekokohan 82.15% yang berarti bangunan dalam kondisi baik. Nilai kekokohan tersebut menunjukkan bahwa komponen bangunan masih berfungsi karena ada pemeliharaan rutin. Berdasarkan hasil identifikasi jenis kayu yang digunakan pada kolom (saka guru) merupakan kayu jati (Tectona grandis). Hasil analisis struktur bangunan terhadap gempa yaitu diperoleh nilai berupa gaya dalam, tegangan aktual, dan respon gempa. Tegangan aktual dihitung menggunakan metode tegangan ijin (Allowable Stress Design) menggunakan nilai gaya dalam. Hasil analisis menunjukkan nilai tegangan aktual kolom kayu jati berada dibawah tegangan ijin. Sedangkan respon struktur dari dua portal yang dianalisis menunjukkan perpindahan, kecepatan, dan percepatan akibat gempa yang nilai nya tidak signifikan.
Keyword: analisis struktur, bangunan bersejarah, identifikasi visual