Judul: Simulasi Pertumbuhan Ayam Broiler Berdasarkan Variabilitas Iklim Mikro Kandang
Abstrak: Modelling is a relevant tool to monitor broiler rearing condition in integrated view. The aim of this study is to develop the simulation model of broiler growth realated to its interaction with micro-climate condition. Broiler growth model was simulated in relation with energy balance from feed that was intaked till its excreted. This simulation model can predict broiler live weight and feed intake variables. This model was validated using ideal and non ideal micro-climate condition as model inputs. Validation result show MRPE < 25%, means that this model accurate enough tobe used in another broiler growth simulation. This paper gives two simulation sample, it is simulation to see the effect of heat stress, and cold stress on broiler performance; and simulation to determine the best harvesting time. Based on feed convertion ratio (FCR) curve from first simulation, broiler that kept under effective temperature 34 oC (heat stress) has better feed efficiency than broiler that kept under Tef 10 oC (cold stress
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Judul: Internet of Things (IoT) Based Environmental Observation On Growth Broid Chicken
Abstrak: Internet of Things (IoT) merupakan sistem jaringan dengan masing-masing tertanam sensor yang terhubung ke internet. Dengan menerapkan IoT dalam peternakan ayam, diharapkan kegiatan peternakan ayam akan lebih efektif. Ayam broiler merupakan ayam ras untuk menghasilkan daging dan merupakan peralihan vertebrata (berdarah panas) ke avertebrata (berdarah dingin) dengan suhu yang dibutuhkan pada saat pemeliharaan 23 – 24 ºC, sedangkan kelembaban yang ideal yaitu berkisar antara 50% – 70%. Suhu lingkungan Indonesia yang beriklim tropis mencapai rata-rata 27 °C – 28 °C, hal ini dapat mengakibatkan stres pada ayam. Ciri-ciri heat stress pada ayam yaitu terjadinya gangguan terhadap pertumbuhan, konsumsi pakan menurun, gelisah, sayap dikembangkan, konsumsi air meningkat, hingga berujung mati. Penelitian ini bersifat deskriptif dan menggunakan metode pengamatan dengan satu perlakuan lima ulangan. Parameter yang diukur dalam penelitian ini adalah suhu, kelembaban, pakan dan bobot ayam. Parameter tersebut untuk menghitung Temperature-Humidity Index (THI), Konsumsi Pakan, Pertambahan Bobot Badan dan Bobot Badan Akhir, Feed Conversion Ratio (FCR) , dan Indeks Performance (IP) menggunakan metode regresi dan korelasi. Analisis regresi pada penelitian ini diketahui memiliki pengaruh yang sangat signifikan antara variabel terikat (THI) terhadap variabel bebas (konsumsi pakan, FCR, PBB, dan IP) derngan nilai P < 0,01, dan variabel terikat (THI) terhadap variabel bebas (mortalitas) memiliki pengaruh yang signifikan dengan nilai P < 0,05. Sedangkan hasil ANOVA yang digunakan untuk mengetahui perbedaan antar kandang memperoleh superskrip yang sama.
Keyword: Purebred Chickens, Internet of Tinkgs, Feed Consumption, Body Weight Gain, Temperature-Humidity Index

Judul: Sintesis dan Pencirian Senyawa 4-Dodekanadioilbis(1-fenil-3-metil-5-pirazolon) sebagai Ionofor untuk Penentuan Ion Lu3+ dengan Teknik Elektrode Selektif Ion
Abstrak: Ion selective electrode (ISE) as an alternative potentiometric method is used widely in determining Lu3+. The success of this method depends on the ionophor used on the ISE. The compound of 4-dodecanedioylbis(1-phenyl-3-methyl-5-pyrazolone) or H2DdBP as pyrazolone derivatives will be used as ionophor on ISE-Lu3+. H2DdBP had been successfully synthesized by Jensen’s method. This method involved reaction of 1-phenyl-3-methyl-5-pyrazolone and dodecanedioyl chloride in basic condition. A compound was produced as a solid substance and was purified by recrystallization using chloroform-ethanol. High performance liquid chromatogram showed that the compound was pure. The compound was in keto form with melting point range of 150-152ºC. Infrared spectra showed vibration peaks (cm-1) were 3451 (br, OH), 1624 (s, C=O), 1589 (s, phenyl C=C), 1558 (s, pyrazolone ring). Chemical shifts (Hz) for 1H-NMR were 7.81–7.84, 7.43–7.46, 7.26–7.290 (m, 10H, Ph); 2.72–2.75 (t, 4H, (CH2)2); 2.47 (s, 6H, CH3); 1.71–1.76 (m, 4H, (CH2)2); 1.32 (m, 12H, (CH2)6). All of these properties showed the characteristics of H2DdBP. Nernst factor of ISE-Lu3+ for two repetitions were 10.40 mV/decade and 8.60 mV/decade which showed that ISE-Lu3+ had good response in determining Lu3+.
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