Judul: Palatabilitas dan Pertumbuhan Sidat Anguilla marmorata dengan Pemberian Atraktan Tepung Cumi dan Tepung Udang Rebon
Abstrak: . Eel is a commodity that high value around and favored international markets. The most dominant issues in eel farming is the initial phase separating larval stadia and Elver. This is because at the stadia is difficult eel adapt to artificial feed (pellets), resulting in eels have a low body weight and slow growth. Slow growth greatly affects the performance of the production of increased maintenance time and cost of production. By providing attractants expected to increase palatability so that growth can be improved. The study was conducted using a completely randomized design with treatments without feed attractants (K), feed with shrimp powder attractant rebon 2% (R), feed attractant flour with squid as much as 2% (C), as well as the feed attractants squid and small shrimp (CR) , each of which was repeated 3 times. Fish kept in aquariums measuring 100x50x40 cm3 with a recirculation system as much as 60 individuals per aquarium with an average weight of 3 g ± 0:50. Feed given 4 times a day, ie at 05.00, 11:00, 16:00 and 21:00 are at satiation (sekenyangnya). Fish maintained for 45 days with sampling every 15 days. The results showed the amount of feed intake ranged from 101.49 g to 159.66 g, average daily growth rate ranged from 0.64% to 0.92%, feed efficiency ranged from 64.06% to 76.77%, and the survival rate ranged from 91.82% to 99.44%. Treatment gives the best effect on the amount of feed intake, daily growth rate and feed efficiency were treated with 2% squid meal attractant.
Keyword: Anguilla marmorata, attractant, palatability, growth

Judul: Kinerja Produksi Elver Ikan Sidat Anguilla marmorata dengan Padat Tebar 2 g/L, 3 g/L, 4 g/L pada Bobot Awal 7 g/ekor dalam Sistem Resirkulasi.
Abstrak: Eels has been known as one of aquaculture commodities with high commercial value. Both local and international demand of eel was relatively high. High market demand of eel could be anticipated wih high elver production which can be applied by increasing the number of eel’s stocking density. The purpose of this research was to analyze the effects of different stocking densities of 2 g/L, 3 g/L, 4 g/L with initial weight of 7 g/eel to the production of elver Anguilla marmorata reared in recirculating system during 40 days. Eels used in this research were at elver stage weighed 7±0.98 g/ eel and length 15±1 cm/ eel. The survival rate for all stocking density in this research was 100%. There are no significant differences found in growth rate, specific growth rate, and weight variance coefficient of all treatments with rate of 0.03-0.06 g/day, 0.38-0.70%, and 14.45-25.29% respectively. The results showed the best stocking density was 4 g/L which showed biomass growth rate and feed conversion ratio were 3.89 g/day and 1.16 respectively
Keyword: survival rate., stocking density, growth, eel

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