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: The Subsitution of Soybean Meal With Tea Waste in Ration Pellet to The Performance of Cross-Breed Weanling Rabbits.
Abstrak: The use of alternative feed can be used to reduce feeding cost. Tea waste is one of bottle beverage industry that can be used as protein resource in rabbits ration due to the high protein contain 27 % (Istirahayu). Twenty female cross-breed weanling rabbits with the initial average body weight 612 ± 89 gram. The experimental design use in this research was completed randomazed design with four treatments and five replications. The data obtained from the experiment was processed using the ANOVA. Whenever a significant different was identified, data processing was continued using the Duncan's Range Test (Steel and Tome, 1993). The amount of treatments shows the level of subtitution of soybean meal with tea waste and concentrated (com 26%, rice brand 20 %, molases 5%, wheat brand 2%, vegetables oil 0.5%, premix 1 %, CaCO3 0.5%), AT0 = 45%: 0% : 55%, AT1 = 30%: 15% : 55%, AT2 = 15% : 30% : 55% and AT3 = = 0% : 45% : 55%. The result shows that the treatment were significantly (p<0,01) higher on dry matter intake, body weight gain and ration convertion. So the rabbit mortality only of treatment AT0. Based on the value dry matter intake, body weight gain and ration convertion the results of this study shows that tea waste can be used as a source of protein in rabbit ranswn up to 45%. The best level of substitution is soybean meal 30 % with 150/0tea waste and 55% concentrate. Keywords: Rabbits, subtitution, soybean meal, tea waste, dry matter intake, body weight gain, ration convertion, mortality.
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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