Judul: Pendekatan Metode CHAID dan Regresi Logistik untuk Menganalisis Faktor Risiko Fasciolosis pada Sapi
Abstrak: The blue print of meat self-sufficiency program in 2014 shows that beef self-sufficiency can be achieved in 2014. The increasing of the productivity of local cattle is one of attempt to achieve meat self-sufficiency. Productivity of local cattle can be decreased because of parasitic helmint infection. Chi-square Automatic Interaction Detection (CHAID) method and logistic regression analysis are the approach that can be used to determine the factors causing the infection of cattle by parasitic helmint. The CHAID result in this research was tree diagram. It showed that the grazing area had the strongest association for the occurence of parasitic helmint infection. The result showed that the sensitifity values was 69.80%, specificity values was 50.30% and the classification accuracy overall was 60.60%. In addition, the overall logistic regression analysis obtained 63.80% for classification accuracy percentage with 69.80% for sensitifity value and 57.20% for the specificity value.
Keyword: CHAID method, logistic regression analysis, parasitic helmint

Judul: Incidence of Fasciolosis and Paramphistomosis in Beef Cattle of North Sumatra Province from 2019-2020
Abstrak: Fasciolosis dan paramphistomosis adalah penyakit yang disebabkan oleh parasit cacing yang menyerang hati dan rumen dimana penularannya dapat melalui siput. Penyakit tersebut dapat menyebabkan kerugian baik dari segi kesehatan maupun ekonomi. Penelitian ini bertujuan menganalisis kejadian fasciolosis dan paramphistomosis serta menghitung kenaikan populasi pada sapi potong di Provinsi Sumatra Utara. Data sekunder mengenai helminthiasis ini diperoleh dari Balai Veteriner Medan dari tahun 2019-2020 dan dilengkapi dengan data dari Dinas Ketahanan Pangan dan Peternakan Provinsi Sumatra Utara. Total populasi sapi potong di Provinsi Sumatra Utara pada tahun 2019 sebanyak 864.680 ekor dan pada tahun 2020 sebanyak 891.868 ekor yang tersebar di 33 kabupaten/kota. Survailans yang dilakukan oleh Balai Veteriner Medan meliputi 22 kabupaten/kota. Data yang diperoleh disajikan secra deskriptif dan diolah menggunakan software Microsoft Excel® 2007. Hasil penelitian menunjukkan bahwa tingkat kejadian paramphistomosis lebih tinggi daripada fasciolosis, dengan persentase berturut-turut sebesar 48,49% dan 5,48%. Berdasarkan hasil tersebut, dapat disimpulkan bahwa sapi potong di Provinsi Sumatra Utara lebih banyak menderita paramphistomosis daripada fasciolosis. Sementara itu, dari segi pertumbuhan populasi sapi potong di provinsi Sumatra Utara tetap mengalami peningkatan dari tahun 2019-2020., Fasciolosis and paramphistomosis are diseases caused by worm parasites that attack the liver and rumen where the transmission can be through snails. The disease can cause losses both in terms of health and economics. This study aims to analyze the incidence of fasciolosis and paramphistomosis and calculate the population increase in beef cattle in North Sumatra Province. This secondary data on helminthiasis was obtained from the Medan Veterinary Center from 2019-2020 and is complemented by data from the Food Security and Livestock Service Office of North Sumatra Province. The total population of beef cattle in North Sumatra Province in 2019 was 864.680 heads and in 2020 as many as 891.868 heads spread across 33 districts/cities. The surveillance carried out by the Medan Veterinary Center covers 22 districts/cities. The data obtained were presented descriptively and processed using Microsoft Excel® 2007 software. The results showed that the incidence of paramphistomosis was higher than fasciolosis, with the percentages being 48,49% and 5,48%, respectively. Based on these results, it can be concluded that beef cattle in North Sumatra Province suffer more from paramphistomosis than fasciolosis. Meanwhile, in terms of population growth, beef cattle in North Sumatra province continued to increase from 2019-2020.
Keyword: Beef cattle, fasciolosis, North Sumatra Province, paramphistomosis

Judul: Sintesis dan Pencirian Natrium Titanat (Na2Ti2O4(OH)2) Berbahan Dasar Titanium Dioksida
Abstrak: TiO2 can be utilized as basic material for synthesis of sodium titanate (Na2Ti2O4(OH)2). This research was purposed to synthesize and characterize sodium titanate from TiO2 rutile powder as a basic material. Sodium titanate was synthesized by hydrothermal process at temperature 130 °C by mixing TiO2 rutile powder with 5 M and 10 M NaOH solution, then each was calcinated at temperature 700 °C. The energy dispersive X-ray analysis showed that sodium titanate has been successfully synthesized. This result was also supported by functional group analysis with Fourier transform infrared (FTIR) spectrofotometer showing the existence of Ti-O-Na vibration band at 989.42 cm-1. The formation of sodium titanate was depend on the reaction condition such as temperature, reaction time, and NaOH concentration. Scanning electron microscope image indicated that sodium titanate synthesized at 130 °C in 20 hours reaction time with 10 M NaOH had crystal size of 99.37 nm.
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