Judul: Pengaruh Penambahan Asam Fulvat dalam Ransum Terhadap Performa Ayam Broiler
Abstrak: Fulvic acid (FA), a class of compounds resulting from decomposition of organic matter, is a part of the humic structure. FA has ability to chelate trace minerals to enhance the uptake of nutrients. This study was designed to investigate whether inclusions of FA into diets of broiler chickens could improve broiler performances. Three hundred and seventy five broilers were allocated into five groups : (R0) control diet (without fulvic acid), (R1) = R0 + 0.25% FA, (R2) = R0 + 0.5% FA, (R3) = R0 + 0.75% FA, (R4) = R0 + 1% FA. Each treatment consisted of 5 replications and used 15 broilers of each. Feed and water were offered ad libitum . Parameters observed were feed intake, final body weight, body weight gain, feed conversion ratio (FCR) and mortality. Data from completely Randomized Design were analyzed using Analysis of Variance (ANOVA) and any significant different was further tested using Duncan multiple range test. Feed intake, final body weight, body weight gain, feed conversion ratio were not affected by fulvic acid supplementation (P>0.05). Supplementation of fulvic acid 0.50% decreased mortality rate of broilers composed to the control diet.
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Judul: Pengaruh Asam Amino Dan Imbangan Kalori Protein Dalam Ransum Terhadap Pertumbuhan Ayam Broiler
Abstrak: Penelitian ini dilakukan dari tanggal 2 November sam- pai dengan 27 Desember 1984 di Jurusan Ilmu Produksi Ternak Fakultas Peternakan, Institut Pertanian Bogor. Tujuan penelitian adalah untuk mengetahui pengaruh asam amino dan imbangan kalori protein dalam ransum terha- dap pertambahan berat badan, berat badan akhir, konsumsi ransum, konversi ransum, konsumsi air minum, persentase karkas, persentase lemak abdominal dan "income over feed and chick cost". Dalam penelitian ini digunakan 180 ekor anak ayam broiler umur satu hari jenis CP 707 "final stock". Ayam- ayam tersebut dipelihara dalam box beralas liter yang berukuran 1 x 1 x 1 m. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan tiga perlakuan dan enam ulangan. Tiap ulangan terdiri dari 10 ekor ayam. Ketiga perlakuan tersebut terdiri dari perlakuan R dengan tingkat protein 18% RA dan energi metabolis 3000 kkal/kg ransum, perlakuan Rg dengan tingkat protein 20% dan energi metabolis 3000 kkal/ kg ransum dan perlakuan Rr dengan tingkat protein 23% dan energi metabolis 3000 kkal/kg ransum. Hasil pengujian statistik menunjukkan bahwa pengaruh asam amino dan imbangan kalori protein dalam ransum nyata (P0.05) terhadap pertambahan berat badan, berat badan akhir, konsumsi ransum, konversi ransum. Konsumsi air minum, persentase karkas, persentase lemak abdominal dan "income over feed and chick cost" tidak menunjukkan pengaruh yang nyata. Pertambahan berat badan rata-rata per ekor sampai umur delapan minggu sangat nyata (P0.01) lebih tinggi pada perlakuan R (228.62 gram) dari pada perlakuan Berat badan akhir rata-rata per ekor se (184.82 gram). RA sam pai umur delapan minggu sangat nyata (P0.01) lebih…dst
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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