Judul: Production and Business Performance of Cardinal Tetra Fish (Paracheirodon axelrodi) Cultivation with a Water Change System at Stocking Densities of 4, 6, and 8 fish/L
Abstrak: Ikan cardinal tetra (Paracheirodon axelrodi) adalah salah satu jenis ikan hias yang banyak peminatnya dan sudah banyak dibudidayakan. Tingkat penebaran yang rendah akan menghasilkan laju pertumbuhan dan tingkat kelangsungan hidup ikan yang tinggi, dengan produktivitas rendah. Tingkat penebaran yang terlalu tinggi akan menyebabkan ikan berkompetisi terhadap pakan dan ruang gerak. Hal ini dapat menghambat laju pertumbuhan dan kelangsungan hidup ikan. Penelitian ini bertujuan untuk menentukan padat tebar yang terbaik pada usaha budidaya ikan cardinal tetra melalui kajian kinerja produksi dan kinerja usaha. Penelitian ini menggunakan rancangan acak lengkap dengan tiga perlakuan dan tiga ulangan, yaitu perlakuan padat tebar 4, 6, dan 8 ekor/L. Pakan yang diberikan berupa pakan komersial berbentuk pelet. Sistem pengelolaan kualitas air yang digunakan adalah sistem pergantian air sebanyak 20%. Hasil penelitian menunjukkan budidaya ikan cardinal tetra dengan padat tebar 8 ekor/L memberikan hasil produktivitas sebesar 81.680 ekor m-3 tahun-1, HPP senilai Rp684, R/C senilai 1,12, dan payback period yaitu 1,67 tahun. Kemudian data kualitas air pada perlakuan tersebut juga cenderung masih dalam batas optimal. Oleh karena itu dapat disimpulkan bahwa kinerja produksi dan kinerja usaha pada budidaya ikan cardinal tetra terbaik dihasilkan pada padat tebar 8 ekor/L., The cardinal tetra fish (Paracheirodon axelrodi) is a type of ornamental fish that is popular and is widely cultivated. Low stocking rates will result in high growth rates and fish survival rates, with low productivity. Stocking rates that are too high will cause fish to compete for food and space. This can inhibit the growth rate and survival rate of fish. This research aims to determine the best stocking density in the cardinal tetra fish cultivation business through a study of production performance and business performance. This study used a completely randomized design with three treatments and three replications, namely stocking density treatments of 4, 6, and 8 fish/L. The feed given is commercial feed in the form of pellets. The water quality management system used is a 20% water replacement system. The results of the research show that cultivating cardinal tetra fish with a stocking density of 8 fish/L provides productivity results of 81,680 fish m-3 year-1, cost of goods manufactured worth IDR 684, R/C ratio 1.12, and a payback period of 1.67 years. The water quality data for this treatment also tends to still be within optimal limits. Therefore, it can be concluded that the best production performance and business performance in cultivating cardinal tetra fish is produced at a stocking density of 8 fish/L.
Keyword: budidaya, cardinal tetra (Paracheirodon axelrodi), padat tebar, produksi, usaha, business, cultivation, production, stocking density

Judul: Performance of Production and Business on Cardinal  Tetra Fish Grow-out in Different Water Replacement Percentages per Week
Abstrak: Ikan cardinal tetra (Paracheirodon axelrodi) merupakan salah satu jenis ikan hias air tawar yang banyak diminati dan memiliki peluang pasar yang bagus. Kualitas air yang optimal akan mendukung usaha budidaya ikan cardinal tetra. Salah satu cara untuk memperbaiki kualitas air selama masa pemeliharaan dengan menerapkan sistem pergantian air. Penelitian ini bertujuan untuk menganalisis kinerja produksi ikan cardinal tetra dengan persentase pergantian air per minggu yang berbeda. Rancangan penelitian yang digunakan yaitu rancangan acak lengkap dengan tiga perlakuan dan tiga ulangan. Ketiga perlakuan adalah pergantian air sebanyak 20% (A), pergantian air sebanyak 35% (B), dan pergantian air sebanyak 50% dari volume total air pemeliharaan per minggu (C). Ukuran ikan cardinal tetra yang ditebar adalah ikan yang berukuran small-medium (SM) dengan panjang rata rata 1,72±0,10 cm dan bobot rata-rata 0,16±0,02 g dan ditebar sebanyak 5 ekor/L. Ikan dipelihara selama 28 hari dan diberi pakan berupa pakan buatan komersial dengan metode at satiation. Hasil penelitian menunjukkan bahwa persentase pergantian air sebanyak 50% menghasilkan kinerja produksi terbaik berupa tingkat kelangsungan hidup 93,80±0,60% dan laju pertumbuhan mutlak panjang 0,0410±0,0009 cm/hari. Perlakuan tersebut juga memberikan kinerja usaha terbaik dengan menghasilkan harga pokok produksi sebesar Rp606,00, payback period 0,87 tahun dan R/C 1,27., The cardinal tetra fish (Paracheirodon axelrodi) is one of the popular freshwater ornamental fish species that has good market potential. Optimal water quality will supports the culture of cardinal tetra fish. One way to improve water quality during the culture period is by implementing a water exchange system. This research was aimed to analyze the production performance of cardinal tetra fish reared at different weekly water exchange percentage. The research design used was a completely randomized design with three treatments in triplicates. The three treatments consisted of 20% (A), 35% (B), and 50% of exchange water of the total water volume per week (C). The stocking size of the cardinal tetra fish was small medium (SM) with an average length of 1.72 ± 0.10 cm and an average weight of 0.16 ± 0.02 g, at a density of 5 fish/L. The fish were reared for 28 days and fed with commercial pellets using the at satiation method. The results showed that a 50% water exchange percentage resulted in the best production performance, including a survival rate of 93.80 ± 0.60% and absolute growth rate of 0.0410±0.0009 cm/day. This treatment also provided the best economic performance with a production cost of Rp606.00, a payback period of 0.87 years and a R/C of 1.27.
Keyword: culture, paracheirodon axelrodi, performance of business, performance of production, water changes

Judul: Pengembangan Framework dan Fungsionalitas Dasar Add-in Microsoft Office Word 2007 untuk Pengecekan Format Skripsi
Abstrak: Thesis correction application is the application used to check the student’s thesis format. This application is an additional add-ins installed in Microsoft Office Word 2007. Correction of this thesis adrift on the amount of the existing section on student thesis document. The input of this application is Microsoft Office Word document (*.doc and *.docx). Rules of the format that used is thesis format of Department of Computer Science Bogor Agricultural University. The methods of Regular Expression is used to examine foreign language words in the document where the language used is. Levenshtein algorithm used for list book references to measure the distance between format and input to find similarity using string pattern. Output of this application is marking and comment from Microsoft Office Word 2007 on the parts that are not in accordance with existing rules. With this Microsoft Office Word 2007 add-in can simplify and shorten the examination thesis format of Department of Computer Science Bogor Agricultural University.
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