Judul: Eksplorasi Potensi Limbah Imago Ulat Sutera Liar Attacus atlas (Lepidoptera: Saturniidae)
Abstrak: Wild Silkworm Attacus atlas is an Indonesian native germplasm from Aceh to Papua. Cultivation of wild silkworm Attacus atlas has started in line with the high market demand on the caterpillar cocoon. The purpose of this study was to determine the potential of imago waste produced by cultivation of wild silkworm Attacus atlas as a source of alternative feed ingredients and the potency as antimicrobial. Proximate analysis was done to find out nutrition in imago of Attacus atlas, antimicrobial testing using the disk method. The results of the proximate analysis test imago silkworm Attacus atlas shows that the imago contains 75.57% protein, 5.94% fat, 3.80% ash, and 14.64% crude fiber from dry matter. Attacus atlas imago extract is brown, gel, fat as a potential source of animal fat. Antimicrobial test from 96% ethanol extract of imago Attacus atlas with the disk method showed no antibacterial activity against Escherichia coli, Pseudomonas, Streptococcus, and Staphylococcus.
Keyword: nutrition content, imago, antimicrobial, Attacus atlas, Bogor Agricultural University (IPB)

Judul: Upaya Intensifikasi Pemeliharaan Ulat Sutera Liar Attacus atlas L. (Lepidoptera : Saturniidae).
Abstrak: Wild silkworm Attacus atlas is one of Indonesian native insect which has high potential to be developed. The cocoons are superior compared with others types of silk, so various processed products can be made such as handicraft, clothes and art that has a high economic value. The cocoon retrieval from nature resulting in population decline of A. atlas in nature, therefore intensive indoor rearing of A. atlas with feed and mating management to increase production is necessary. The purpose of this research was to perform intensive effort of A. atlas rearing by examining the mating management and observed the effect of the feeding treatment on the growth of wild silkworm A. atlas. The research was divided into two phases. The first experiment focussed on mating management of A. atlas done by the different length of mating period of 3, 6, 12 and 24 hours to assess its effect on egg performance, including eggs laying period, number of eggs, the average weight of eggs, eggs hatching period and the hatchability. The second stage was the provision of two types of alternative feed (guava leaves and walnut leaves) with a different frequency of feeding (3 and 4 times a day) to observe its influence on larval growth. The results showed that the different of mating duration significantly affected (p<0.05) to number of eggs. The number of eggs of the mating for 6, 12 dan 24 hours was not significanly different for each 225.80 + 24.30 eggs, 245.00 + 50.70 eggs dan 288.40 + 77.63 eggs, significantly different from the number of eggs in mating for 3 hours was 155.60 + 48.75 eggs. The egg hatchability was significantly influenced (p<0.01) by different time mating with means 92.16 + 6.57 %. Percentage of eggs hatchability with mating time of 6, 12 and 24 hours were not significantly different, but significantly different from the time of mating for 3 hours. The different time of mating did not significantly affected (p > 0.05) egg laying period (oviposition) with an average time was 5.00 ± 0.65 days. The result also showed that different time of mating was not significantly different (p> 0.05) to the time of hatching eggs with an average value of 9.80 ± 0.87 days. Moths are mated in different time of mating produced eggs that were not significantly different weighy (p> 0.05). The results at the second research showed that larvae of A. atlas liked both types of the given leaves. Interaction of treatment types of feed and the feeding frequency significantly affected (p<0.05) feed intake, digestibility, digested food, weight gain, diameter increament, mortality and instar period. Difference in feed and feeding frequency significantly affected (p<0.05) the average of larvae’s consumption from instar I to instar IV. Larvae fed with walnut leaf consumpt 0.310 g/larva (instar I) and 0.442 g/larva (instar II) higher that fed with guava leaves (0,279 g/larva; 0.392 g/larva). At the third and fourth instars, larvae fed with leaves of guava has the higher consumption average with 0.967± 0.098 g/larva and 1.211 ± 0.189 g/larva. Digestibility and digested feed were influenced significantly (p
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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