Judul: Aplikasi cairan rumen sapi sebagai sumber Enzim, Asam Amino, Mineral dan Vitamin pada ransum  broiler berbasis pakan lokal
Abstrak: The aims of this research were to identify and characterize the enzymes extracted from local and imported cattle rumen liquor and applications of these enzymes together with mixture of amino acids, minerals and vitamins present in the sediments to improve qualityof broiler diets based on local feedstuffs. Combination of filtration and configuration of the liquor produced the supernatant as the enzyme source and the sediment used as the source of amino acids, minerals and vitamins. The enzymes activities were evaluated againts several local feedstuffs and vitamins.
Keyword: Cattle Rumen Liquor, Broiler Performance, Enzyme Activities

Judul: Performan Ayam Broiler yang Diberi Pakan Bentuk Pelet Berbahan Baku Wheat Pollard Hasil Olahan Enzim Cairan Rumen
Abstrak: High quality of feedstuff is very important to support animal productivity. Corn is the main energy source for broiler chickens. Due to its supply and high price probiems from local corn. We recommended wheat pollard as alternative feed of sourch energy like corn. Wheat pollard as alternative has high crude fiber that disturbs digestion for broiler chickens. So, supplementation of enzymes from rumen liquor may increase the quality of wheat pollard. More over, steam pelleting of diet containing the wheat pollard may improve its quality. The research was conducted to study of performance of broiler feed pelleted diet containing with wheat pollard processed by enzymes from rumen liquor. We were used 360 broiler chickens Arbor acres strain age 21-35 days. The animals were devided into 36 group and assigned to one of the nine diets treatments i.e : PI (Feed with enzymes dossage 0 U/kg and stearn pelleting at temperature 60°C), P2 (Feed with enzymes dossage 0 U/kg and stearn pelleting at temperature 80°C), P3 (Feed with enzymes dossage 0 U/kg and steam pelleting at temperature 100°C), P4 (Feed with enzymes dossage 620 U/kg and stearn pelleting at temperature 60°C), P5 (Feed with enzymes dossage 620 U/kg and stearn pelleting at temperature 80°C), P6 (Feed with enzymes dossage 620 U/kg and stearn pelleting at temperature 100°C), P7 (Feed with enzymes dossage 1,240 U/kg and stearn pelleting at temperature 60 QC), P8 (Feed with enzymes dossage 1,240 u/kg and steam. p.elleting at temperature 80 DC) dan P9 (Feed with enzymes dossage 1,240 U/kg and stearn pelleting at temperature 100°C). Water and feed were given ad libitum.
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Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular