Judul: Sterols component of katuk leaves extract (Sauropus androgynus) and its relation to japanese quail reproduction system
Abstrak: Katuk (Sauropus androgynus L Merr) is known to contain carotenoids, vitamin E, vitamin C, protein, and sterol compounds. This study was aimed to determine whether phytosterol in Sauropus androgynus (SA) leaf affected the reproductive system of female quails. One hundred and fifty female quails were raised from 2-27 weeks old, divided into thre e treatment diets, with five replicates with 10 quails in each replicate. The treatment diets were: 1) Control group: diet without katuk leaf meal; 2) Diet with 9% SA ethanol extract (SAE); 3) Diet containing 9% SA meal (SAM). The oviduct grew more rapidly (p<0,05) in SAM-fed quails than that of the control group and SAE-fed quails at 5 weeks old. In addition, the body weight of SAM -fed quails were significantly greater (p<0.05) than that of the SAE and the control group at 5 weeks old.
Keyword: Ransum daun katuk, Fitosterol, Sistem reproduksi puyuh

Judul: Evaluation of usage katuk (Sauropus Androgynus) and mulberry leaf meal (Morus Alba) On Productivity and physiology status of laying quail
Abstrak: Katuk leaf meal is considered as herbal medicine since it could improve the milk production in human as well as in animals. It also could increase the egg production as well as poultry performances. It also had been proved to increase vitamin A content in chicken liver and in the egg yolk. Murbei leaf meal also considered as herbal medicine. Some previous studies reported that murbei leaf, from some different species, contain moderate protein (15.7%-22.6%) and vitamin A content (5671-5736 mg%), these ranges were depending upon the different ages when the leaves were harvested and also the species of the murbei leaves. These researchs were conducted to evaluated the used of the two herbal leaves and its combination in the performances of Japanese quails (Coturnix coturnix japonica). The first experiment was to evaluated the effect of usage katuk leaf meal (10%) and mulberry leaf meal (10%) and its combination (5% katuk leaf meal + 5% mulberry leaf meal) in the diet based on rice bran (without yellow corn) on cholesterol, vitamin A, mineral Fe and Zn content in quail’s egg, meat and liver; as well as egg quality and production. The result showed that the lowest cholesterol content in the egg yolk, carcass, liver, were found from the quails fed diet containing the combination of katuk leaves meal and murbei leaves meal (R3). The cholesterol content were 349.606 mg 100g-1, 30.005 mg 100g-1, and 162.151 mg 100g-1 respectively. The content of egg’s vitamin A (336.65 μg 100g-1), meat (186.28 μg 100g-1) and liver (262.86 μg 100g-1); the content of egg’s mineral Fe and Zn (89.88 and 113.04 ppm) and quail’s meat (89.12 and 68.81 ppm) , also egg yolk color score (7.00) were the best resulted from the quails fed diet containing 5% katuk leaf meal+5% mulberry leaf meal. In general the best performances were found to be the best from the quails fed diet containing the combination katuk leaves meal and murbei leaves meal The second experiment was conducted to evaluated the effect of usage katuk leaf meal (10%), mulberry leaf meal (10%) and its combination (5% katuk leaf meal+5% mulberry leaf meal) in the layer quail’s diet that used yellow corn (<50%) to quail’s performances and egg quality. The resulted showed that usage 10% katuk leaf meal in quail’s diet have the same egg production as control diet (without leaf meal), with the highest yolk color score (10.03) and yolk’s vitamin A content (2560.62 mg 100g-1). The quail fed diet with 10% katuk leaf meal reached 5% QD Production faster than other treatment. It was concluded that usage 10% katuk leaf meal and 10% mulberry leaf meal could increased yolk color score and yolk vitaminA content. The third experiment was conducted to evaluate quail’s tibia bone size and mineral content, also the quail’s blood profile, which fed 10% katuk leaf meaal, 10% mulberry leaf meal, or its combination (5% katuk leaf meal+5%mulberry leaf meal). The resulted showed that the bone diametre of quail fed diet with combination 5%katuk leaf meal +5%mulberry leaf meal shorter than other treatment. Bone mineral Ca
Keyword: katuk leaf meal, mulberry leaf meal, laying quail

Judul: Ongkos irregularitas sebuah graf
Abstrak: Tulisan ini mengkaji bagaimana cara mcngubah sualu graf menjadi graf yang irregular, yaitu dengan menambahkan beberapa edge pacta graf asal. Untuk sebuah graf G, didefinisikan ongkos irregularitas ic(G) yaitu jumlah minimum tambahan edge sedemikian sehingga menjadi Multigraf H yang merupakan multigraf G irregular. Akan ditentukan ongkos irregularitas dari graf regular, graf mendekati regular, dan graf mendekati irregular.
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