Judul: Performa Penetasan Telur Ayam Hasil Persilangan Ayam Kampung dengan Ayam Ras Pedaging
Abstrak: The aimed of this research is to know hatching performance of Local x Broiler (KB) chicken with 3 replication and 1:5 sex ratio, then Broiler x Local (BK) chicken with 2 replication and 1:5 sex ratio. The eggs are collected everydays and hatched everyweeks at incubator with temperature 37-39 oC and humidity 59%-60% until hatching. Variables measured consisted of the weight of hatching weight, the weight of decent hatching eggs, hatching egg weight, egg index, the weight of hatching eggs, hatching weight, egg shell thickness, weight percentages of the weight of hatching eggs, hen day, a decent percentage of hatching, fertility, hatchability, and embryo mortality. Egg weight, egg hatch weight, egg that hatch weight, and DOC (Day Old Chick) of weight KB were bigger than BK chicken (P<0.01). Hen day (P<0.05) and fertility (P<0.01) KB were better than BK. Based on the paremeteres tested, KB better than BK, except the other variables are not significantly different from that egg shell thickness, embryo mortality, hatching a decent percentage, and hatching rate.
Keyword: local, hatching, crossbreeding, broiler

Judul: Performa Produksi Hasil Persilangan Ayam Pelung x Sentul x Kampung x Ras Pedaging Umur 12-21 Minggu
Abstrak: This research studied the performance of PSKB and PSBK chicken in growth phase (12-21 weeks). PSKB chicken was crossbred between pelung-sentul (PS) cock with kampung-meat type (KB) hen. PSBK chicken was crossbred between pelung-sentul (PS) cock with meat type-kampung (BK) hen. This research used 12 males PSKB, 23 females PSKB, 11 males PSBK, and 9 females PSBK. Variables measured were body weight, body weight gain, feed intake, feed conversion, mortality, age of first egg, weight of first egg, and indexs of egg. The result of this research were not significant (P>0.05) between PSKB cock with PSBK cock and PSKB hen with PSBK hen on body weight, body weight gain, feed intake, feed conversion, weight of first egg, and indexs of egg. Age of first egg were significantly different (P<0.05) between PSKB hen with PSBK hen. The males of PSKB and PSBK had better performance than the females. Crossbred of pelung, sentul, kampong, and meat type showed better performance than local chicken.
Keyword: crossbred, performance, PSBK chicken, PSKB chicken

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