Judul: Analysis of Hoof Disease Rates in Dairy Cattle at PT Great Giant Livestock in August-September 2021
Abstrak: Kepincangan pada sapi merupakan penyebab utama masalah kesejahteraan dan pengapkiran pada sapi. Tujuan penelitian ini untuk menganalisis penyebaran dan kejadian penyakit kuku pada sapi perah serta hubungan kepincangan terhadap Body condition score, laktasi, dan produksi susu di PT Great Giant Livestock pada bulan Agustus hingga September 2021. Data studi diambil dari tenaga kesehatan hewan dan laporan kejadian penyakit kuku PT Great Giant Livestock. Data disajikan dalam bentuk gambar. Prevalensi kepincangan yang terjadi di PT Great Giant Livestock pada bulan Agustus dan Desember didapatkan sebesar 5% dan 4% dan rataan 2 bulan sebesar 4%. Total kepincangan yang dilaporkan sebanyak 28 kasus dari 314 ekor sapi perah produktif. Kasus kepincangan yang didapatkan adalah sole ulcer, thin sole, dan laminitis. Deteksi dini kepincangan bisa dilakukan dengan penilaian skor lokomosi pada sapi. Hubungan kepincangan terhadap rata – rata mingguan produksi susu pada sapi perah di PT Great Giant Livestock tidak memiliki pengaruh yang signifikan. Kepincangan dapat dipengaruhi oleh beberapa faktor seperti kebersihan dan sanitasi kandang, perubahan dan komposisi pakan, dan penggunaan alas pada kandang yang kurang tepat., Lameness in cattle is a major cause of welfare problems and abandonment in cattle. The purpose of this study was to analyze spread and number of hoof disease in dairy cows and the effect of lameness on Body condition score, lactation, and milk production at PT Great Giant Livestock from August to September 2021.The study data were taken from animal health workers and the report on the incidence of hoof disease from PT Great Giant Livestock. Data is presented in the form of images. The prevalence of lameness that occurred at PT GGL in the period August and December was 5% and 4% and the 2-month average was 4%. The hoof diseases discussed in this study are 3 cases of lameness in cattle.The total lameness reported was 28 cases out of 314 productive dairy cows. There were 3 cases of lameness, namely sole ulcer, thin sole, and laminitis. Early detection of lameness can be seen by assessing the locomotion score in cattle. The relationship of lameness to the average weekly milk production in dairy cows at PT Great Giant Livestock has no significant effect. The incidence of lameness can be influenced by several factors such as hygiene and sanitation of the stall, changes and feed composition, and improper use of the base in the stall.
Keyword: Cows, Lameness, laminitis, thin sole, sole ulcer

Judul: Analysis of Housing Management on the Risk of Dairy Cattle Hoof Disease at PT Great Giant Livestock
Abstrak: Penyakit kuku dan kepincangan yang diakibatkannya merupakan masalah kesejahteraan hewan yang paling penting dalam peternakan sapi perah modern. Sapi perah dengan produksi tinggi, kelebihan nutrisi dan berat badan sapi yang dipelihara secara intensif di lantai beton dianggap sebagai faktor risiko penyakit kuku. Tujuan penelitian ini untuk menganalisis manajemen perkandangan terhadap kesehatan kuku sapi perah di PT GGL. Data manajeman perkandangan didapatkan secara observasi langsung. Analisis data menggunakan metode deskriptif untuk menguraikan dan menjelaskan mengenai faktor risiko hasil dari observasi secara langsung. Prevalensi penyakit kuku sapi di PT GGL pada periode Juli hingga September 2021 didapatkan sebesar 1,2%, 3,2%, dan 2,9%. Prevalensi yang rendah di PT GGL dikarenakan banyaknya manajemen perkandangan yang telah sesuai dengan rekomendasi. Manajemen perkandangan PT GGL yang sesuai dengan rekomendasi meliputi penggunaan kandang semi close house dengan sistem free stall, pemerahan kurang dari empat jam, kelompok pakan dan sistem pakan headlock, lebar tempat berbaring 125 cm, letak pen kandang berdekatan, pengelompokan sapi post partus dan primipara, perendaman kaki sapi periode kering dan laktasi dengan formalin 5% dan tembaga sulfat 3%, pemotongan kuku sapi periode kering dan pertengahan laktasi, penanganan dan pengobatan lesi kuku, dan pembilasan kotoran dengan sistem flushing. Manajemen perkandangan yang masih belum sesuai dengan rekomendasi di PT GGL yaitu ukuran headlock 50 cm, bedding berbasis matras dan lantai beton. Manajemen yang diterapkan PT GGL dapat mencapai produksi susu sebesar 8.265 kg/ekor di atas rata-rata di Indonesia namun masih rendah dari negara empat musim., Foot disorders and the resulting lameness are the most important welfare problem in modern dairy farming. High yielding dairy cows, over-nourished and heavy weight cows which are reared intensively on concrete floor are considered as risk factors for dairy foot disorders. The purpose of this study was to analyze housing management on the health of the hooves of dairy cattle at PT GGL. The housing management data was obtained by direct observation. Data analysis used descriptive methods to describe and explain the risk factors resulting from direct observation. The prevalence of cow hoof disease at PT GGL in the period July to September 2021 was 1.2%, 3.2%, and 2.9%. The low prevalence at PT GGL is due to the large number of housing management that has been in accordance with the recommendations. PT GGL’s housing management in accordance with the recommendations includes the use of semi- close house with a free stall, milking less than four hours, feed group and headlock, 125 cm wide lying area, closeness of pen cage, grouping of post partum and primiparous, foot bath in dry cattle and lactation cows with formalin 5% and copper sulfate 3%, hoof trimming in dry and mid-lactating period, handling and treatment of hoof lesions, and rinsing of manure by flushing system. The housing management that is still not suitable at PT GGL is the headlock size 50 cm, bed-based mattresses and concrete floors. The management implemented by PT GGL can achieve milk production of 8,265 kg/head above the average in Indonesia but still low than the four-seasons country.
Keyword: Kesehatan, Kuku, Lingkungan, Manajemen, Sapi

Judul: Photosensor producing based on ferroelectric material of Ba0,5Sr0,5TiO3 doped by Ferrium Oxide (Fe2O3) on a P-Type Silicon Substate Si (100) applied as a digital camera with a single pixel image sensor
Abstrak: Thin film Ba0,5Sr0,5TiO3 (BST) doped with Fe2O3 was grown on p-type silicon substrate (100) using chemical solution deposition (CSD). It used the solvent 2-methoxyethanol with annealing temperature of 850°C and the doping treatment Fe2O3 of 2.5, 5, 7.5, 10 % of the mass formed BST. Pure BST had the highest absorption of 600 nm of light wavelength. Additions Fe2O3 moves highest absorption in the range of 560 nm. Fe2O3 addition was strengthening thin film sensitivity to the effects of light. In general, doping Fe2O3 10% was result the best absorbance and current-voltage of BST thin film. Electrical properties of thin films BST include dielectric, photoconductivity, and dissipation energy. Based on the current-voltage (I-V) analysis, pure BST and doped BST showed photodiode properties. Dielectric values obtained in the range from 23.32 to 243. Based on electrical conductivity data and energy dissipation, BST thin films have shown photodiode characteristics and are therefore suitable as light sensors. The image sensor in a digital camera is also a light sensor. This BST thin film has been scientifically proven to be a light sensor and also it can be applied as an image sensor. This is a novelty image sensor based on thin film Ba0.5Sr0.5TiO3.
Keyword: barium strontium titanate, thin film, photodiode, image sensor, digital camera