Judul: Kadar Serum Darah Ayam  Petelur yang Diberi Air Rebusan Daun Sirih
Abstrak: This study was conducted to determine the effect of utilization Piper betle Linn leaves boiled water addition on lipid metabolism in serum of laying hen. The research used thirty laying hens (19 weeks of age). Completely randomized design used in this experiment with 5 treatments and 3 replications, each replication consist of 2 animals. The treatments : P1 (basal diet), P1 + 5 ml Piper betle Linn. leaves boiled water, P1 + 7.5 ml Piper betle Linn. leaves boiled water, P1 + 10 ml Piper betle Linn. leaves boiled water and P1 + 12.5 ml Piper betle Linn. leaves boiled water. The diet contain 17% crude protein and 2915 kcal/kg metabolizable energy. The variables observed were triglyceride, cholesterol, HDL and LDL serum of laying hen. The data obtained were analyzed with analysis of variance (ANOVA). The result showed that the treatment diets had significant effects on cholesterol, triglycerides and HDL of blood serum but not significant on LDL and total cholesterol concentrations of yolk.
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Judul: Performa Produksi Ayam Arab Petelur yang Diberi Jamu Ternak Melalui Air Minum
Abstrak: This research was conducted on June until August 2011 in the Faculty of Animal Science, Bogor Agricultural University to evaluate the laying performance of Arab hens fed herbs mixture trough drinking water. Herbs mixture was composed from lesser galangal, garlic, ginger, galangal, turmeric, ginger, green betel leaves, cinnamon, molasses and effective microorganisms (EM4). All herb materials were incubated for 5 days. Readily use herbs mixture was given to the hens through dringking water for three consecutive days in a week during 6 weeks experiment. A total of 48 of Arab hens age 19 weeks were kept and subjected to 3 different treatments of herbal mixture addition in drinking water. The treatments were no herbal mixture (P0), 5 ml/day (P1) and 10 ml/day (P2). This research was designed completely randomized (CRD). Data were subjected to analysis of variance (ANOVA) and the differences between treatments were tested by Duncan’s multiple range test. Variables measured were feed consumption, feed conversion, hen day production and mortality. The feed consumption revealed no significant differences among treatments. However, the feed conversion increased and hen day production decreased significantly at the higher level addition of herbal mixture. Herbs mixture showed no harmful effect on hens health.
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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