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: Kajian Histopatologi Paru–Paru Ayam Broiler yang Diuji Tantang Virus Avian Influenza (H5N1) Setelah Pemberian Ekstrak Tanaman Sirih Merah (Piper Crocatum)
Abstrak: This research aim was to study the histopathological features of lungs in broiler that challenged by Avian Influenza (AI) H5N1 virus after treatment with sirih merah (Piper crocatum) extract. Fourteen Cobbs of broiler were divided into 4 groups treatment included negative control (KN) who were not given the sirih merah extract and not challenged by AI virus, positive control (KP) who were not given the sirih merah extract but challenged by AI virus, negative treatment (PN) who were given the sirih merah extract but not challenged by AI virus, positive treatment (PP) who were given the sirih merah extract and challenged by AI virus. Treatment of the sirih merah (Piper crocatum) 10% extract/ml/head broiler was for three weeks per os and then challenged with Avian Influenza H5N1 virus 104,0 EID50/0,1 ml per head intra nasal in BSL-3 facilities. The result of this research showed that the histopathological features of lung in broiler group PP would be similar to the KN with the congestion and oedema, however lesser than those PN whereas oedema was not shown. The KP group showed the worst lesion than other groups with necrose in the alveol. Based on the statistical analysis showed that KP group was significantly different compared to the KN group however no significantly different while compared to the PP and PN. In conclusion, the treatment of sirih merah (Piper crocatum) extract to broiler followed by challenging with AI H5N1 virus can reduce the mortality and damage of lungs organ.
Keyword: 

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.
Keyword: