Judul: Microclimate of Cages and Body Surface Temperature of Mud Buffalo with Misting System
Abstrak: Pertambahan jumlah penduduk yang meningkat memengaruhi kebutuhan protein hewani di Indonesia. Potensi pengembangan ternak potong kerbau lumpur dapat menjadi solusi dalam pemenuhan kebutuhan daging. Kondisi lingkungan ternak yang nyaman dibutuhkan kerbau untuk meningkatkan produktivitas ternak dengan melihat mikroklimat kandang dan suhu permukaan tubuh ternak kerbau. Penelitian ini bertujuan untuk menganalisis pengelolaan mikroklimat kandang melalui sistem pengabutan dalam menurunkan suhu permukaan tubuh ternak kerbau. Penelitan menggunakan tiga ekor kerbau lumpur dara dengan umur sekitar dua tahun. Analisis data menggunakan metode deskriptif untuk pengamatan suhu udara kandang, kelembapan udara kandang, Temperature Humidity Index (THI), suhu komponen kandang, dan suhu permukaan tubuh ternak. Hasil penelitian menunjukan bahwa pemberian pengabutan air dapat menurunkan nilai Temperature Humidity Index (THI) kandang pada waktu pagi dan siang hari mendekati zona nyaman kerbau. Pemberian pengabutan air berpotensi memperbaiki mikroklimat kandang dan menurunkan suhu permukaan tubuh ternak kerbau., Increasing population growth affects the need for animal protein in Indonesia. The potential for the development of mud buffalo beef cattle can be a solution in meeting the demand for meat. Buffaloes need comfortable livestock environmental conditions to increase livestock productivity by looking at the microclimate of the cage and the body surface temperature of the buffalo. This study aims to analyze the management of the stable microclimate through the misting system in improving the body surface temperature of buffaloes. This study used three mud buffaloes aged about two years. Data analysis used a descriptive method to observe cage air temperature, cage air humidity, Temperature Humidity Index (THI), cage component temperature, and livestock body surface temperature. The results showed that the application of misting system can reduce the value of the Temperature Humidity Index (THI) of the cage in the morning and afternoon close to the buffalo's comfort zone. Giving misting system has the potential to improve the microclimate of the pen and reduce the body surface temperature of the buffalo.
Keyword: body surface temperature, buffalo, microclimate, misting system

Judul: Physiological Responses with Water Misting using Water Sprinkler on Beef Cattle
Abstrak: Sapi pedaging merupakan jenis sapi yang dimanfaatkan dagingnya untuk pemenuhan protein hewani di Indonesia. Permasalahan yang dihadapi Indonesia adalah rendahnya produktivitas sapi. Peningkatan produktivitas sapi pedaging dapat dilakukan dengan cara membuat sapi berada pada zona nyaman dengan melihat respon fisiologis dari sapi tersebut. Penelitian ini bertujuan untuk mengetahui pengaruh pengabutan air terhadap respon fisiologis sapi pedaging dan mikroklimat kandang. Rancangan yang digunakan adalah uji-T berpasangan untuk variabel respon fisiologis dan mikroklimat kandang dengan melakukan sebanyak 5 kali ulangan dan Rancangan Acak Lengkap untuk mengetahui perbedaan antara suhu permukaan tubuh. Perlakuan terdiri dari sebelum pengabutan air dan sesudah pengabutan air. Hasil penelitian menunjukan bahwa perlakuan pengabutan air pada siang hari berbeda nyata (P<0,05) terhadap peubah suhu kandang, kelembaban kandang, temperature humidity index, suhu rektal, frekuensi pernapasan, dan frekuensi denyut jantung. Pengabutan air pada siang hari menurunkan variabel mikroklimat kandang dan sapi yang diukur hingga mendekati zona nyaman dan nilai faal sapi., Beef cattle is the type of cow that is commonly utilized for its meat to fulfill animal protein in indonesia. The problem facing Indonesia is the low productivity of cattle. The increase of productivity of cattle producer can actually be done by relocating the cattle towards the comfort zone by seeing the physiological response. The purpose of this research is to find out the misting of water towards its effect on the physiological response and the microclimate of the cattleshed. The design used was a paired T-test for physiological and microclimate response variables with 5 replications and a completely randomized design to determine the difference between body surface temperatures. The treatment consisted of before water misting and after water misting. The results showed that treatment of misting water in the afternoon was significantly different (P<0.05) on the variables of cage temperature, humidity, temperature humidity index, rectal temperature, respiratory frequency, and heart rate. Water misting in the afternoon in cattle produced a good effect on all physiological response variables.
Keyword: Beef cattle, pen microclimate, physiological responses, water sprinkler

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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