Judul: Development of scientific investigation method to prove blast and cyanide fishing cases
Abstrak: Some of applicable methods for monitoring chemical contaminant and their effect in fish and general aquatic ecosystem can be used to identify fishes exposed with cyanide and explosion. These methods includes observation of physical damages of internal and external organs of the fish, histologigal and physiological analysis and behavioral observation. Therefore these methods can be adopted as a part of scientific investigation method to prove blast and cyanide fishing cases.
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Judul: Kondisi Histopatologi Ikan Mas Budidaya pada Lingkungan yang Tercemar Merkuri dan Selenium di Kawasan Pongkor Bogor dan Strategi Pengelolaannya
Abstrak: Mercury emissions from upstream gold mining and processing areas were found in high levels in waters, sediments, agricultural products, and fishes in Pongkor area led to conduct a study on reared carp fishes in same area from histopathological view. Selenium effect as antagonist of mercury, has never been studied before in this area. The study presents the total Hg and Se amount in water, sediments, and fish organs (gill, liver, kidney, intestine, spleen, and muscle), histopathology finding, and enviromental parameters that could influence the fish condition. Mercury and selenium were analyzed using acid digestion followed by determination of total mercury by atomic absorption spectrophotometry. Routine histopathological procedure was use after paraffin embedding and hematoxylin-eosin (HE) staining. The mercury concentrations in waters and organs was undetected, but there hundreds fold above the maximum limited permitted by Canadian Environment Quality Guidelines were detected in sediments. Tens fold selenium concentrations above the threshold level proposed by Lemly (2002) were also observed in sediments. In tissue, Se concentrations also reached tens fold above the threshold proposed by DeForrest et al. (1999). However, these higher concentration of fishes tissues could be worthwhile to metabolisms of fishes and people as antagonistic role of Se to Hg and either heavy metals found in this area. The histopathological changes that found within were degenerations and, necrosis, blood circulation alterations, and some parasites infections. This conditions could influenced by some environmental factors such as sediment type, hardness and alkalinity, water resources, leaching and flushing, and interaction with the other metals. Beside the good aquaculture practices, the strategy of management that could implemented to diminishing pollution of Hg and Se are : modification of construction of ponds; tandonitation; and biological, physical and chemical remediations.
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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