Judul: Kebutuhan lisin ayam broiler yang diberi ransum dengan jagung sebagai biji - bijian utama
Abstrak: An experiment was conducted from December 3, 1982 to January 28, 1983 at Department of Animal Nutrition, Facul ty of Animal Science, Bogor Agriculture University. The main objectives of this experiment was to deter- mine the lysine requirement of broilers ration with corn as the major cereal grain on body weight gain, body weight at eight weeks of age, feed consumption, feed conversion, mortality, and income over feed and chick cost. The experimental material were used 180 day old male chicks of CP 707 strain. After wing banding the chicks were kept in wire boxes with wire floors of 1 X 1 X 0.5 m in measure. 3 The experimental design was Completely Randomized De- sign. There were four ration treatments and three repli- cation. In replication consist of 15 chicks. The four ra tions (R, RR, Re, and Ro) have been supplemented with 0, 0.4, 0.8, 8'and'1.5 nd' 1.2 percent lysine. The percentage of lysi- ne was based on 100 kg ration. Rations and water were pro vided ad libitum. After eight weeks of age, the average body weight ga- in was respectively 1 534.85 gram (R), 1 455.26 gram (Rg), 1 520.45 gram (R), and 1 514.97 gram (R); the average body weight at eight weeks was 1 586.86 gram (R), 1 505.05 gram (Rg), 1 559.54 gram (R), and 1 553.67 gram (R); the average feed consumption was 492.77 gram (RA), gram (R), 478.17 gram (R), and 474.62 gram (RA); 473.35 the ave rage feed conversion was 2.60 (RA), 2.63 (Rg), 2.51 (Rc), and 2.49 (Rp). Statistical analysis showed that there were no signifi cant effect of treatments on body weight gain, body weight at eight weeks of age, feed consumption, and feed conversi- on....
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Judul: Pengaruh tingkat pemberian lisin terhadap performans ayam broiler dengan galur dan jenis kelamin berbeda
Abstrak: Penelitian ini dilaksanakan selama 6 minggu, yaitu mulai bulan Oktober sampai bulan Nopember 1992 di kandang Balai Penelitian Ternak, Ciawi, Bogor, Jawa Barat. Penelitian ini bertujuan untuk mengetahui respon beberapa galur ayam broiler terhadap berbagai tingkat kandungan asam amino lisin dalam ransum di daerah tropis, dengan mengetahui pertumbuhan dan efisiensi makanan. Disamping itu, dengan penelitian ini diharapkan pula dapat memberikan informasi yang bisa meningkatkan efisiensi pemberian asam amino lisin di daerah tropis pada beberapa galur ayam broiler. Ayam yang dipergunakan berumur 1 hari (DOC) dan seluruhnya berjumlah 640 ekor dari 4 galur ayam broiler, yaitu galur Bromo (G₁), galur Ross (G2), galur Indian River (G3) dan galur Lohmann (G4). Masing-masing galur sebanyak 160 ekor yang terdiri dari 80 ekor ayam jantan dan 80 ekor ayam betina. Setiap kandang berisi delapan ekor ayam. Ayam-ayam tersebut dipelihara dalam kandang baterai sebanyak 80 kandang. Dalam Penelitian digunakan lima level perlakuan ransum dengan tingkat kandungan lisin dalam ransum yang berbeda, yaitu ransum 1 (R1) dengan kandungan lisin 0,94%, R2 (1,04%L), R3 (1,14%L), R4 (1,24%L) dan R5 (1,34%L). Setiap level perlakuan ini disusun secara iso energi (3.000 kkal/kg untuk ransum starter dan finisher) dan iso protein (21% untuk ransum starter dan 19% untuk finisher). Selama penelitian ayam-ayam dipisahkan menurut galur dan jenis kelamin, dengan lima tingkat (level) kandungan lisin dalam ransum. Adapun peubah yang diukur meliputi konsumsi ransum, pertambahan bobot badan, konversi ransum dan mortalitas. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan pola faktorial 4x5x2. Faktor galur (G) terdiri dari 4 taraf yaitu G1, G2, G3 dan G4 Faktor ransum (R) terdiri dari 5 taraf yaitu R1, R2, R3, R4 dan R5. Faktor jenis kelamin terdiri dari dua taraf yaitu jantan (J) dan betina (B).
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Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology