Judul: Produktivitas Tenaga Pengarit dan  Komposisi Hij auan  Pakan Domestik di Petemakan Sapi Perah Pondok Ranggon,  Kecamatan Cipayung, Jakarta Timur
Abstrak: Pondok Ranggon farm is one of the dairy farms in Jakarta where the pattern of availability forage depending onnatural pastures. The aim of this experiment were to analyze labor productivity of grass seekers and to identify the composition of domestic forage in the dairy farm of Pondok Ranggon. This experiment used descriptive analysis, composition of botany and Nell and Rollinson method. The result showed that the capacity of grass seekers influenced by body weight, age and experience of cutting. The result showed, the highest capacity of cutting obtained by grass seekers in the age of 40 years old. Composition of forage consist of 52.63% grasses, 15.79% legumes and 31.58% rumbah. The most frequent type of grass that used were Imperata cylindrica (LINN.) P.Beauv., Pennisetum polystachyon (L.) Schult., and Panicum maximum Jacq. Type of legumes that often used was Calopogonium mucunoides Desv. and the types of rumbah that most commonly used were Asystasia coromodeliana Ness., Biden pilosa L. and Lantana camara L.
Keyword: composition of forage, cutting, grass, leaves, legume

Judul: Analisis Pola Penyediaan, Ketersediaan, dan Jenis Vegetasi Hijauan Pakan pada Peternakan Sapi Perah di KUD Mandiri Cipanas, Kabupaten Cianjur, Jawa Barat
Abstrak: KUD Mandiri Cipanas is a corporation which organized dairy farmers from districts in Cianjur, which are Cipanas, Sukaresmi, and Pacet. The aim of this research was to evaluate and analize the pattern of forage management based on the level of ownership of forage, forage potential, diversity analysis, and three types of forage in the three districts. This study used descriptive analysis, forage botanical composition analysis, capacity analysis of location based on Nell and Rollinson methods, and vegetation analysis. Pattern of forage management dairy cattle in KUD Mandiri Cipanas is cut and carry. Based on population of dairy cattle, avaibility of foragenon large and medium farms are from grass land farm (GRF), and tropical grass for small farms. There is no correlation between cutting capacity and ownership of livestock. The most dominant in enclosure is Penisetum purpureum Schum, while the rumbah grass dominant on the land
Keyword: forage, diversity analysis, dairy cattle, composition botany, carrying capacity

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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