Judul: Perkembangan Embrio dan Daya Tetas serta Viabilitas Anak Ayam Arab dari Umur Induk yang Berbeda
Abstrak: Low quality and quantity of local chicken egg in Indonesia are mainly due to the poor breeding management. Hen age is one of considered factor of breeding and hatchery management. Until now the embryo development, hatchability, and chick viability of local chicken such as Arab chicken from different age is still questionable, although it has been proven on broilers. This research was conducted at Laboratory of Poultry Hatching, Departement of Animal Science Production and Technology, Animal Science Faculty, Bogor Agricultural University from May till June 2012. The Complete Randomized design with 135 fertile eggs from three different age of hens (36, 42, and 54 weeks) used in this study. Exterior quality of fertile eggs, embryo development, hacthability, and chick viability were observed in this study. The data were analyzed by analysis of variance (ANOVA) and then continued by Tuckey analysis. Data of shell cleanness, air egg shell quality, extraembrionic membrane development, hatchability, and viability were analyzed by descriptive method. The data showed that egg weigth, egg index, and embryo weight, beak length, head perimeter of 7th incubation time and embryo weight, neck length, and leg length of 14th incubation time were different (P<0.05). Incressing of hen age could effect the decressing embrio capability to absorb nutrition. The temperature of incubator also effected on metabolism rapidity of embrio. The optimum hen age of to produce good embryo development, hatchability, and viability of Arab Day Old Chick is 36 weeks.
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Judul: Production Performance and Physical Quality Characteristics of  Arab Chicken Eggs at Different Hen Age
Abstrak: Umur induk merupakan salah satu faktor utama yang dapat memengaruhi produktivitas dan kualitas telur yang dihasilkan. Penelitian ini bertujuan menganalisis perbedaan performa produksi, kualitas fisik eksternal, dan kualitas fisik internal telur ayam arab yang dihasilkan oleh umur induk yang berbeda. Ayam yang digunakan pada penelitian ini berumur 61 minggu (P1) dan 87 minggu (P2). Performa produksi diamati selama satu minggu di kandang pemeliharaan. Telur dari masing-masing umur untuk menguji kualitas fisik eksternal dan internal sebanyak 30 butir. Hasil penelitian menunjukkan bahwa umur induk berpengaruh secara signifikan (P<0,05) terhadap feed conversion ratio (FCR), hen day production(HDP), hen house production (HHP), indeks bentuk telur, bobot kerabang, ketebalan kerabang, tinggi albumen, dan haugh unit. Ayam arab umur 61 minggu (P1) memiliki performa produksi dan kualitas fisik telur yang lebih baik dibanding ayam arab umur 87 minggu (P2).
Keyword: arab chicken, hen age, physical egg quality, production performance

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
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