Judul: Performa ayam broiler yang diberi hormon testosteron dengan dosis bertingkat
Abstrak: Testosterone is a hormone that has an important role in secondary sex characteristics. Testosterone was known as androgenic and anabolic hormone. This research used testosterone to observe the performance of broiler chickens. Fourty four broiler chickens 15 days old were divided into 4 groups: K (control), T1 (dose 1 mg), T2 (dose 2 mg), and T3 (dose 4 mg). Parameters measured were body weight, feed and water consumption, feed conversion ratio (FCR), and mortality. The results showed that testosterone dose 1 and 4 mg could increase the daily body weight gain significantly (p<0.05) in broiler chickens aged between 15 and 18 days old. Testosterone dose 2 mg could increase the daily body weight gain significantly (p<0.05) in broiler chickens aged between 21 and 24 days old. Final weight, the amount of feed and water consumption, feed conversion ratio (FCR), and mortality of chickens given testosterone did not show any difference compare with control.
Keyword: broiler, daily body weight gain, FCR, final weight, testosterone

Judul: Gambaran kecernaan pakan ayam broiler yang diberi testosteron dengan dosis bertingkat
Abstrak: Testosteron merupakan salah satu hormon anabolik yang dapat memicu pertumbuhan massa otot serta mengembangkan dan memelihara tulang.Hormon testosteron mampu merangsang sekresi hormon lain seperti growth hormone. Penelitian ini bertujuan untuk mempelajari pengaruh penambahan hormon testosteron dengan konsentrasi bertingkat pada ayam broiler terhadap kecernaan pakan melalui analisis feses. Penelitian ini menggunakan dua puluh ayam broiler berumur 14 hariyang dibagi dalam 4 grup (K, T1, T2, dan T3). K adalah kelompok kontrol, T1, T2, dan T3 ayam broiler yang dilakukan pemberian 1, 2, dan 4 mg testosteron. Feses yang merupakan eksresi hasil metabolisme diambil dari setiap perlakuan untuk dilakukan analisa proksimat. Nilai kecernaan pakan didapat dari persentasi selisih nilai analisa proksimat pakan dengan feses dibagi nilai analisa proksimat pakan. Nilai kecernaan paling tinggi pada kadar lemak kasar (79.20%), protein (6.37%), dan BETN (69.79%) ada pada kelompok T3. Oleh karena itu, pemberian 4 mg testosteron dapat meningkatkan bobot badan
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Digestibility, Feces, Hormones, Proximate, Testosterone

Judul: Algoritme LLL dan Aplikasinya dalam Pembongkaran Sistemkripto Knapsack Merkle-Hellman
Abstrak: LLL algorithm is an algorithm that can be used to determine an approximation of the shortest vector in a lattice. Size reduction algorithm is an important step of LLL algorithm. The LLL algorithm can be applied in many elds. This paper shows how LLL algorithm can be used in breaking one of the famous cryptosystem, namely the Merkle-Hellman knapsack cryptosystem. Merkle-Hellman knapsack cryptosystem is an asymmetric cryptosystem using the subset sum problem as the support of security. Subset sum problem can be transformed into the problem of determining shortest vector in a lattice, so that LLL algorithm can also be used to solve the subset sum problem. Since the subset sum problem can be easily solved by applying LLL algorithm, then the Merkle-Hellman knapsack cryptosystem can also be easily be destructed.
Keyword: