Judul: Physiological Response and Estrus Characteristics of Sumatran Composite Sheep that Given Flushing Ration at the Sumatera Martabe Farm
Abstrak: Penelitian ini bertujuan mempelajari pengaruh ransum flushing terhadap respon fisiologis dan karakteristik estrus induk Domba Komposit Sumatera di Sumatera Martabe Farm. Jumlah domba yang digunakan sebanyak 10 ekor induk domba Komposit Sumatera yang memiliki rata-rata bobot badan 43,41 kg/ekor, ditempatkan pada kandang individu. Perlakuan yang diberikan meliputi 2 ransum, yaitu ransum kontrol (SMF) dan ransum flushing (Flushing). Peubah yang diamati adalah respon fisiologis, konsumsi nutrien berdasarkan bobot badan metabolis, dan karakteristik estrus (onset estrus, durasi estrus, dan respon estrus). Data yang diperoleh dianalisis dengan t-test independent sample menggunakan program IBM SPSS Statistic 25. Hasil penelitian menunjukkan ransum flushing yang digunakan berpengaruh nyata (P<0,05) meningkatkan konsumsi nutrien, dan mempercepat onset estrus dan durasi estrus dibandingkan dengan ransum SMF, namun tidak berpengaruh nyata terhadap respon fisiologis pada Domba Komposit Sumatera. Ransum flushing dapat meningkatkan konsumsi nutrien, mempercepat onset estrus dan durasi estrus , namun tidak mengganggu status fisiologis dari induk Domba Komposit Sumatera, This research aimed to study the effect of flushing rations on the physiological response and estrus characteristics of Sumatran Composite Sheep at the Sumatera Martabe Farm. A total of 10 Sumatran Composite Sheep with an average body weight of 43,41 kg/ekor, were used and placed in individual pens. The treatments consisted of 2 groups: a control ration (SMF) and a flushing (Flushing). The variables observes were physiological response, nutrient consumption based on metabolic body weight, and estrus characteristic (onset of estrus, duration of estrus, and estrus response). The data obtained were analyzed by independent sample t-test using the IBM SPSS Statistic 25 Program. The results show that flushing diet significantly (P<0,05) increased nutrient consumption and accelerated onset and duration of estrus compared to the SMF diet. However it, did not significantly affect the physiological response of Sumatra Composite Sheep. The flushing diet can enchance nutrient consumption, accelerate onset and duration of estrus, without disrupting the physiological status of Sumatra Composite Sheep.
Keyword: estrus, flushing, physiological response, sheep

Judul: The Effect of Different Flushing Management on Local Ewes Production Perfromance During Pregnancy
Abstrak: Penelitian ini bertujuan menganalisis pengaruh manajemen flushing yang berbeda terhadap performa produksi induk domba lokal selama bunting. Penelitian ini menggunakan 16 domba betina laktasi kedua dengan rata-rata bobotnya 30,06 ± 6,20 kg dan ditempatkan di kandang individu. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 4 perlakuan dan 4 kelompok. Perlakuan terdiri atas P1 = tanpa flushing, P2 = flushing sebelum dan setelah dikawinkan, P3= flushing sebelum dan setelah dikawinkan, serta di tengah kebuntingan, P4 = flushing sebelum dan setelah dikawinkan, ditengah dan diakhir kebuntingan. Rasio hijauan : konsentrat dalam ransum adalah 30 : 70 % berdasarkan bahan kering. Peubah yang diamati meliputi konsumsi nutrien, body condition score (BCS), pertambahan bobot badan harian (PBBH), efisiensi pemanfaatan pakan, dan income over feed cost (IOFC). Data dianalisis dengan ANOVA dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan bahwa perlakuan tidak berpengaruh nyata (P>0,05) terhadap konsumsi bahan kering, konsumsi protein kasar, konsumsi serat kasar, konsumsi Beta-N, BCS, PBBH, efisiensi pemanfaatan pakan, dan nilai IOFC. Manajemen flushing berpengaruh nyata (P<0,05) terhadap konsumsi lemak kasar, konsumsi total digestible nutrient (TDN), dan perubahan nilai BCS sebelum dan setelah flushing. Disimpulkan bahwa manajemen flushing yang berbeda dengan penambahan minyak ikan lemuru sebelum dan setelah kawin, ditengah, dan diakhir kebuntingan mampu meningkatkan dan memperbaiki performa produksi induk domba lokal serta menghasilkan keuntungan yang paling tinggi., The aim of this research was to analyze the effect of different flushing management on local ewes production perfromance during pregnancy. This research used 16 second lactating local ewes, average weight was 30,06 ± 6,20 kg and placed in individual cages. This research used a Randomized Block Design (RBD) with 4 treatments and 4 replications. P1 = without flushing, P2 = flushing during before and after matting, P3 = flushing during before and after matting, and in the middle of pregnancy, P4 = flushing during before and after matting, in the middle and end of pregnancy. Ratio forages and concentrate in the ration were, 30:70 % dry matter basis. The parameter observed were nutient consumption, body condition score (BCS), body weight gain (BWG), feed utilization efficiency, and income over feed cost (IOFC). The data were analyzed using ANOVA and Duncan test. The results showed that the treatment did not significant effect (P>0,05) on consumption of dry matter, consumption of crude protein, consumption of crude fiber, consumption of Beta-N, BCS, BWG, feed utilization efficiency, and IOFC. Flushing management had significant effect (P<0,05) on consumption of crude fat, consumtion of total digestible nutrient (TDN), and difference of BCS before and after flushing. It was concluded that different flushing management with the addition of lemuru fish oil before and after matting, in the middle and end of pregnancy increased and improved production perfromance of local ewes, and produced the highest profit.
Keyword: Flushing management, Body condition score, Production performance

Judul: Analisis dan Implementasi Certificate Authorities (CA) pada Public Switched Telephone Network (PSTN)
Abstrak: Secure Telephone Protocol has ability to authenticate involved party and keep the secrecy of the message sent over the protocol. The secrecy of the message archieved by using symmetric key cryptographic scheme, and authentication archieved using public key cryptographic scheme. One of several party involved in the protocol and hold an important function called Certificate Authorities or CA. CA responsible for generating public key pair for other party involved in the protocol. When CA generates public key pair, several primitive cryptographic scheme used for guarantee the security of the key. Two of them are hash function SHA-1 and El-Gamal public key scheme embedded in Digital Signature Algorithm scheme. The prototype implementing the scheme above developed using Java programming language with JCE addition from Bauncy Castle. The analysis towards implemented prototype indicates that the prototype still has some flaws to be implemented in real world.
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