Judul: Identifikasi Bakteri Saluran Pencernaan Lumba-lumba Hidung Botol Indo-Pasifik (Tursiops aduncus)
Abstrak: This research was aimed to identify the bacteria which lived in the digestive tract of the indo-pacific bottlenose dolphin (Tursiops aduncus). Anal swab samples were taken from 11 clinically healthy dolphins. These samples were cultured in the blood agar and MacConkey agar. The identification of the bacteria were based on series of tests i.e., colony and individual morphology, Gram stain characterisic, and standard biochemistry tests. At least, 14 genus of bacteria were identified such as Edwardsiella, Actinobacillus, Serratia, Enterobacter, Alcaligenes, Morganella, Proteus, Moraxella, Aeromonas, Pseudomonas, Streptococcus, Staphylococcus, Listeria, and Bacillus. Serratia and Alcaligenes were the most common genus which were found in the digestive tract of the dolphin
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Judul: Identifikasi Bakteri Asal Saluran Pernafasan Atas (Blowhole) Lumba-lumba Hidung Botol Indo-Pasifik (Tursiops aduncus) di Kawasan Konservasi Pantai Cahaya Kendal Jawa Tengah
Abstrak: Recently years, dolphin conservations more active to do in Indonesia. The population of dolphin has declined because of illegal hunting. The concerned problems of dolphin conservations are health management which related with infectious diseases. The knowledge of microorganisms associated with dolphin is still limited, particularly which is bacteria in upper respiratory tract. The aim of this research was to identify the type of bacteria in upper respiratory tract of indo-pacific bottlenose dolphin (Tursiops aduncus). Swab sampling from the upper respiratory tract (blowhole) of 11 dolphins was cultured in selective media. This research found 15 types of bacteria in the upper respiratory tract such as Actinobacillus sp., Pseudomonas sp., Moraxella sp., Bacillus sp., Staphylococcus aureus, Staphylococcus epidermidis, Proteus sp., Citrobacter sp., Salmonella sp., Serratia sp., Klebsiella sp., Pasteurella sp., Edwardsiella tarda, Alcaligenes faecalis, and Yersinia sp. The frequent bacteria that found in dolphin upper respiratory tract are Actinobacillus sp., Pseudomonas sp., Moraxella sp., and Bacillus sp. Some bacterias, such as Pseudomonas sp., Staphylococcus aureus., Staphylococcus epidermidis, Salmonellasp., Klebsiella sp., Proteus sp., Pasteurella sp., and Edwardsiella tarda are potentially patogen for dolphins.
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Judul: Manajemen Risiko Petani Kakao Menggunakan Opsi Amerika
Abstrak: Fluktuasi dan ketidakpastian harga yang dihadapi oleh petani kakao dapat menimbulkan kerugian atau minimnya keuntungan yang diperoleh petani. Sistem Resi Gudang (SRG) dapat memungkinkan petani menunda jual biji kakao dengan menyimpannya terlebih dahulu di gudang sampai jangka waktu tertentu. Selanjutnya, petani akan mendapatkan resi gudang sebagai dokumen bukti kepemilikan aset yang dapat dijadikan sebagai agunan. Optimalisasi manfaat dari penerapan SRG dapat ditingkatkan dengan mengintegrasikannya dengan opsi put tipe Amerika untuk meminimumkan risiko kerugian yang dialami oleh petani kakao. Opsi put tipe Amerika memungkinkan petani untuk menjual kakaonya kapan saja, yaitu sebelum atau pada saat waktu jatuh tempo. Nilai opsi dihitung menggunakan model binomial 12-langkah dengan asumsi harga kakao berubah setiap bulan untuk kontrak opsi put tipe Amerika berjangka satu tahun. Dari model ini didapatkan nilai opsi put tipe Amerika yang selanjutnya digunakan untuk menentukan seberapa besar keuntungan petani. Bentuk integrasi SRG dengan opsi put tipe Amerika memberikan kepastian bahwa kakao petani akan tetap terjual dan memperoleh keuntungan walaupun ada ketidakpastian harga.
Keyword: Model Binomial, opsi put tipe Amerika, resi gudang, Sistem Resi Gudang