Judul: Diare Anak Babi Masa Menyusu Suatu Studi Kasus di Peternakan Babi Dua Sekawan Desa Tanjung Burung, Tangerang
Abstrak: Keberhasilan suatu peternakan babi ditentukan oleh beberapa faktor yaitu bangsa-bangsa babi jenis unggul yang mampu mengkonversikan makanan secara efisien; pakan bermutu tinggi; tatalaksana manajemen pencegahan penyakit; sanitasi dan pemberantasan penyakit serta faktor pemasaran. Yang sering menjadi masalah utama dalam peternakan babi selama masa kelahiran adalah tingginya angka kematian anak babi karena diare sehingga jumlah sapihan menurun yang akhirnya menurunkan produksi peternakan. Tujuan dari studi kasus ini adalah untuk mengetahui tingkat mortalitas dan morbiditas diare anak babi selama periode menyusu pada Peternakan Babi 'Qua Sekawan" di Tangerang. Tingginya angka kematian pada anak babi selama periode ini merupakan kendala bagi para peternak karena akan menurunkan nilai produksi.
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Judul: Peternakan babi rakyat dengan pemeliharaan dalam kandang berserasah
Abstrak: Penelitian dilaksanakan herdasarkan latar belakang bahwa teknologi beternak babi model Indpnesia masih harus digali dan dikembangkan, karena yang ada saat ini masih merupakan tiruan negara-negara maju daerah subtropis. Tujuannya untuk membuktikan bahwa cara beternak babi dalam kandang berserasah adalah suatu cara beternak yang mudah dan relatif murah. Materi yang diamati ialah ternak babi dan hasil kotorannya serta peternak babi dalam kandang berserasah (babi kering) sebagai sumber informasi primer. Penelitian dijalankan dengan metode survai dan observasi langsung di lapangan. Responden dipilih dengan metode contoh acak bertingkat sebanyak 25 persen, sedang jumlah pemilikan babi dan luas lahan sebagai tingkatannya.
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Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice