Judul: Pemberian Pakan Pelet dengan Sumber Protein Berbeda terhadap Kinerja Pertumbuhan Ikan Sidat Anguilla bicolor bicolor Stadia Yellow eel
Abstrak: The main problems found in Indonesian shortfin eel production were slow growth rate and relatively high feed conversion ratio. Feed is one of main aspects which directly affects growth rate. The purpose of the recent study was to find out the best main protein source for Indonesian shortfin eel feed in form of pellets between shrimp meal, imported fish meal, or combination between shrimp meal, imported fish meal and local fish meal to improve the growth rate of Indonesian shortfin eel at yellow eel stage. Main protein sources used for feed production in the recent study were shrimp meal, imported fish meal, and combination of shrimp meal, imported fish meal and local fish meal. Commercial feed were also used as control. Research was performed using 8 units of aquarium with dimension of 90x50x40 cm3 with total water volume of 120 liters. The average weight of eels used in the recent study was 100,99 ± 0,88 gram/eel. Observed parameters in the recent study consisted of survival rate, daily growth rate, feed conversion ratio, and water quality parameters (water physics and chemistry). Based on overall observed parameters scoring, feed with main protein source of imported fish meal were the best treatment in the recent study to improve growth rate of Indonesian shortfin eel at yellow eel stage using feed in form of pellets. Therefore, imported fish meal could be utilized as main protein source in Indonesian shortfin eel feed production because it was estimated to contain the most compatible nutrient composition with the growth requirements of Indonesian shortfin eel
Keyword: growth performance, pellet, protein source, eel

Judul: Kinerja Pertumbuhan Ikan Sidat Anguilla bicolor bicolor Stadia Yellow Eel yang Diberi Pakan Pasta dengan Sumber Protein Berbeda
Abstrak: Feed is one of main factor which play role to increase growth performance of eels. Besides the high feed protein (40-50%) needed from the contain of eel’s feed, source of raw material protein is determine the eel’s feed quality. The purpose of this study is to get out the best raw material of protein source for an optimal growth performance of yellow eels with moist feed. This study was performed in eight aquariums which have measurement of 90x50x40 cm3 in 120 liters/aquarium of water. Eels at yellow eel stage in 111,25 ± 0,95 gram of body weight were used. There are four treatments in this study consisted of commercial feed, feed with baby shrimp meal as main protein source, imported fish meal, and combination from local fish meal, baby shrimp meal, and imported fish. The result showed that the feed with imported fish meal is the best treatment. Survival rate of all treatments were 100% and the feed conversion rate are 3,00; 3,01; 2,96; and 3,24. There’s no significant difference in daily growth of all treatments where the value are 0,68 ± 0,18%; 0,46 ± 0,06%; 0,58 ± 0,10%, and 0,31 ± 0,07%. Protein and lipid retention rate of the best treatment are 22,30% and 603,82% respectively.
Keyword: protein source, moist feed, growth performance, Eels

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