Judul: Penggunaan Ekstrak Daun Babadotan dalam Air Minum terhadap Karkas dan Organ Dalam Ayam Broiler pada Kepadatan Kandang Berbeda
Abstrak: Penelitian ini bertujuan untuk mengevaluasi efek pemberian ekstrak daun babadotan (Ageratum conyzoides) dalam air minum pada kepadatan kandang yang berbeda dalam karkas dan organ dalam ayam broiler. Penelitian ini menggunakan ayam broiler strain Cobb sebanyak 300 ekor. Ayam dipelihara selama 4 minggu dan diberikan air minum dengan atau tanpa penambahan anti stres komersial (P1 dan P2), 5% dan 10% ekstrak daun babadotan (P3 dan P4) pada kepadatan kandang yang berbeda, yaitu 10 dan 15 ekor mˉ². Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) pola faktorial 4 x 2 dengan 3 ulangan. Data dianalisis ragam (ANOVA) dengan uji banding Duncan dan Non-Parametrik Kruskal Wallis. Hasil penelitian menunjukkan bahwa tidak ada interaksi antara penambahan ekstrak daun babadotan dengan kepadatan kandang yang berbeda terhadap karkas dan organ dalam ayam broiler. Hasil juga menunjukkan bahwa 5% dan 10% penambahan ekstrak daun babadotan (P3 dan P4) dalam air minum menghasilkan performa yang sama dengan yang diberikan air minum dengan atau tanpa anti stres komersial (P1 dan P2).
Keyword: ekstrak daun babadotan, karkas, kepadatan kandang, organ dalam, saluran pencernaan

Judul: Pemberian Air Minum Mengandung Aditif Herbal terhadap Persentase Karkas dan Organ Dalam Ayam Broiler.
Abstrak: Tujuan penelitian ini adalah untuk mengevaluasi persentase organ dalam ayam broiler yang diberi air minum mengandung imbuhan pakan herbal sebagai pengganti antibiotik. Sebanyak 320 ekor ayam broiler Strain Ross umur satu hari dibagi menjadi 32 petak dan secara acak diberi salah satu dari empat perlakuan air minum. Penelitian ini menggunakan 4 jenis ransum, yaitu R0 (ransum dengan antibiotik dan air minum tanpa imbuhan pakan herbal), R1 (ransum tanpa antibiotik dan air minum tanpa imbuhan pakan herbal), R2 (ransum tanpa antibiotik dan air minum dengan 0.75% imbuhan pakan herbal R) dan R3 (ransum tanpa antibiotik dan air minum dengan 0.75% imbuhan pakan herbal S). Data penelitian dirancang dengan Rancangan Acak Lengkap (RAL) dianalisis menggunakan ANOVA dan jika berbeda diuji jarak Berganda Duncan. Peubah yang diamati: persentase bobot karkas, persentase bobot organ dalam, persentase bobot dan panjang saluran pencernaan. Hasil penelitian menunjukkan bahwa penambahan imbuhan aditif herbal pada air minum menurunkan (P<0.05) persentase ginjal dan bulu, namun tidak berpengaruh terhadap persentase karkas dan bobot serta panjang saluran pencernaan. Kesimpulan penelitian ini adalah Pemberian aditif herbal S dalam air minum dapat menurunkan persentase ginjal dan bulu, namun tidak menyebabkan perubahan berarti pada persentase jantung. Penambahan aditif herbal berdampak sama sebagai pengganti antibiotik untuk ayam broiler.
Keyword: antibiotik, broiler, imbuhan pakan herbal, organ dalam

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