Judul: Histopatologi Ikan Kerapu Bebek (Cromileptes altivelis) yang Terinfeksi Iridovirus
Abstrak: The humpback grouper (Cromileptes altivelis) is a coral reef fish distributed throughout tropical Asia. The fish has high economic value. However, the production of humpback grouper has been affected by viral diseases including Iridovirus infection. The disease caused mass mortality and decreased the quality and value of humpback grouper. The purpose of this study was to examine the histopathological changes of humpback grouper infected by Iridovirus. The Iridovirus infected grouper samples were received from fish farming in floating net cages in the Mandeh waters, West Sumatra. The fishes showed dark discoloration of the skin, splenomegally and Iridovirus positive PCR test results. The tissues of brain, eye, gill, heart, spleen, intestine, pancreas, liver, kidneys, sceletal muscle, and skin were received in 10% buffered formalin. The histopathological examination showed pathognomonic large intracytoplasmic basophilic inclusion bodies in hematopoietic tissue of spleen and kidney, lymphoid cells were observed in choroid layer of eye and in liver sinusoid. The enlarged cells were present in high numbers in kidney, spleen and liver. Smaller numbers were present in eye, gill, intestine and brain, and none in the heart, pancreas, muscle and skin. Other findings correlated with Iridovirus infection were neuronal ischemic, necrosis of intestinal epithelial cells, necrosis of cardiomyocytes, necrosis of hematopoietic cells of liver and kidney. The literature studies resume that pathogenesis of this viral infection begin with the viral entry through the skin ulcer, then the virus spread systemically in the blood circulation, infect the hematopoietic cells in the spleen and kidney as well as the other cells.
Keyword: pathogenesis, Iridovirus, inclusion body, histopathology, grouper

Judul: Viabilitas juvenil ikan kerapu bebek Cromileptes altivelis terhadap infeksi bakteri Vibrio alginolyticus setelah diberi pakan kadar Fe berbeda
Abstrak: Humpback grouper (Cromileptes altivelis) culture potentially against the problem of pests and diseases.Vibrio bacteria which causes vibriosis is the main problem for humpback grouper culture industry which cause the death of fish. The use of iron as a mineral that works in the blood cells could be expected to affect viability of humpback grouper against the disease. The fish was cultured in 60x40x50 cm aquarium reared for 40 days, and stoked at a density of 10 ind./aquarium, it weight was 9.44±0.36 gram/ind. The experiment diet contained different iron supplementation level which are 0 ppm, 100 ppm and 500 ppm. The feed was given 3 times daily at a satiation. After 40 days culture feeding, the fish was exposed in fresh water for 10 minutes and injected by 108 CFU/ml Vibrio alginolyticus. The feeding of iron supplementation (Fe) 0 ppm, 100 ppm, and 500 ppm did not significantly affect specific grow rate and survival rate of humpback grouper before the bacterial infection. After the bacterial infection, the fish fed by diet containing 100 ppm Fe had better viability.
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Judul: Sistem Manajemen Ahli untuk Strategi Penjualan Produk Industri Minuman Teh Kemasan
Abstrak: Dalam suatu industri pengolahan teh, penetapan strategi penjualan yang tepat merupakan ha1 yang penting karena kontinuitas penjualan produk yang dapat memberikan keuntungan bagi perusahaan dalam jangka panjang, akan sangat tergantung pada strategi penjualan yang diambil oleh para pengambil keputusan pada industri tersebut. Model SALES dirancang untuk membantu manajer penjualan industri pengolahan teh berskala menengah ke atas, yang memproduksi teh botol dan teh kotak, pada pengambilan keputusan bidang perencanaan penjualan yang melibatkan manipulasi numerik dan simbolik.
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