Judul: Kajian histopatologi organ trakhea dan paru-paru ayam broiler yang ditantang virus Avian Influenza setelah pemberian ekstrak adas bintang (Illicium verum)
Abstrak: Penelitian ini bertujuan untuk mengetahui gambaran histopatologi organ trakhea dan paru-paru ayam yang ditantang virus Avian Influenza (AI) H5N1 setelah pemberian ekstrak adas bintang (Illicium verum). Penelitian ini menggunakan 14 ekor ayam broiler strain Cobb dibagi menjadi 4 kelompok perlakuan, yaitu kelompok kontrol positif (KP) yang tidak diberi adas bintang namun diuji tantang AI, kontrol negatif (KN) yang tidak diberi adas bintang dan tidak ditantang AI, perlakuan 1 yang diberi adas bintang dan tidak diuji tantang AI (P1), dan perlakuan 2 yang diberi adas bintang dan diuji tantang AI (P2). Hasil penelitian ini menunjukkan perbedaan yang nyata antara lesio histopatologi trakhea kelompok KP, P1 dan KN. Sebaliknya, lesio histopatologi paru-paru kelompok KP dan P2 juga berbeda nyata dengan paru-paru KN. Dapat disimpulkan bahwa bahan aktif pada ekstrak adas bintang 1 ml/hari per ekor selama 3 minggu dapat mengurangi kerusakan organ trakhea dan paru-paru akibat ditantang virus Avian Influenza H5N1 dengan dosis 104,0 EID50/0,1 ml per ekor.
Keyword: Avian Influenza, ayam broiler, ekstrak adas bintang, paru-paru, trachea

Judul: Gambaran Histopatologi Organ Hati dan Ginjal Ayam Broiler yang Ditantang Virus Avian Influenza setelah Pemberian Ekstrak Etanol Adas Bintang (Illicium verum)
Abstrak: The aim of this research were to study the potency of star anise and histopathology of chicken’s liver and kidney that were challenged by Avian Influenza virus subtype H5N1 after treatment with star anise (Illicium verum). The research used broiler that were divided into four groups: included K1 (positive control) that were challenged by Avian Influenza virus, K2 (negative control) that were without any treatment, P1 that were challenged by virus H5N1 and extract treatment, and P2 were the group that treated by extract star anise. Chicken was fed by extract star anise from 7 to 28 days age and were challenged by H5N1 virus intranasal with dose 104 EID50/0,1 ml/chicken. Statistical analysis using Kruskal Wallis’s test then continued by Dunn’s test showed significantly different (p<0,05) between K1 with K2, P1, and P2 for liver and showed between K1 with K2 and P2 in kidney. According to mortality rate, star anise in single treatment showed capability to reduce mortality rate 37,5%. Histopathological finding of both organ showed lesions such as congestion, degeneration, hemorrhage, infiltration of inflammatory cells, and necrosis. Treatment with star anise extract decrease lesion compare among group that were challenged by virus H5N1 and extract treatment with negative control group.
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Judul: Dinamika Sistem Ekonomi dengan Model Overlapping-Generation
Abstrak: This manuscript describes a modern macroeconomic model in discrete time so-called Overlapping-Generation Model. In general, modeling framework of Overlapping-Generation is assumed that each person lives for only two periods, i.e. he/she works in the first period and retires in the second. By maximizing lifetime utility, which depends on consumption in the two periods of life, there will exist a steady state condition. Steady state happens when capital per capita at the first and the second periods are equal. In the end, economics converges to a steady state. Some numerical simulations show the effects of some parameters to the steady state condition.
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