Judul: The Influence of Body Condition Score, Cleanliness, and Bedding on the Comfort of Beef Cattle in Central Lampung
Abstrak: Indeks kenyamanan sapi atau Cow Comfort Index (CCI) merupakan salah satu ukuran penunjuk tingkat kenyamanan sapi dengan melihat rasio hewan berbaring dibagi total jumlah hewan. Beberapa faktor yang dicurigai memiliki hubungan dengan tingkat CCI di antaranya Body Condition Score (BCS), kebersihan sapi, jenis alas kandang, serta kondisi kering/basah alas kandang. Penelitian ini bertujuan menentukan korelasi dari faktor-faktor tersebut terhadap CCI peternakan sapi potong yang ada di Lampung Tengah. Data diambil sebanyak dua kali (pagi dan siang hari) di 65 kandang peternakan sapi potong di Kecamatan Terbanggi Besar dan Kecamatan Way Pengubuan Kabupaten Lampung Tengah. Selanjutnya, data diolah menggunakan analisis korelasi Spearman. Hasil penelitian menunjukkan bahwa BCS, kebersihan sapi, dan alas kandang tidak kuat hubungannya terhadap tingkat kenyamanan sapi. Hasil yang signifikan hanya diperoleh dari pengamatan korelasi positif antara kondisi kering/basah alas kandang terhadap CCI. Tingkat kenyamanan sapi yang rendah pada peternakan sapi potong di Lampung Tengah mungkin dipengaruhi faktor lain seperti suhu dan kelembapan kandang serta status kesehatan sapi., Cow Comfort Index (CCI) is a measure of the level of comfort of cattle by looking at the ratio of lying animals to the total number of animals. Factors suspected to be related to the CCI level include Body Condition Score (BCS), cow cleanliness, type of bedding, and the dry/wet condition of the bedding. This study aimed to determine the correlation of these factors with the CCI in beef cow farms in Central Lampung. Data was collected twice (in the morning and afternoon) from 65 beef cattle farms in Terbanggi Besar and Way Pengubuan Districts, Central Lampung Regency. Subsequently, the data was analyzed using Spearman's correlation. The results showed that BCS, cow cleanliness, and bedding did not have a strong correlation on the CCI. Significant results were only obtained from observing a positive correlation between dry/wet conditions of cage bedding and CCI. The low CCI level on beef cattle farms in Central Lampung may be influenced by other factors such as temperature and humidity in the pen and the cows’ health status.
Keyword: alas kandang, BCS, CCI, kebersihan sapi, sapi potong

Judul: The Differences in Microclimate Characteristic Influencing Physiological Values of Beef Cattle in Terbanggi Besar, Central Lampung
Abstrak: Penelitian bertujuan untuk mempelajari respon fisiologis sapi potong terhadap perbedaan karakteristik mikroklimat kandang di Kecamatan Terbanggi Besar, Kabupaten Lampung Tengah. Sepuluh ekor sapi potong, masing-masing lima ekor berada pada dua kandang yang berbeda. Kandang A berada di lingkungan terbuka-hijau dengan ketinggian kandang 4 meter, sedangkan kandang B berada di lingkungan pemukiman dengan ketinggian kandang 3 meter. Pengukuran profil mikroklimat dilakukan tiga kali sehari, sedangkan pengukuran nilai fisiologis (suhu rektal, frekuensi denyut jantung dan pernapasan) dilakukan dua kali sehari. Pengukuran pertambahan bobot badan harian (PBBH) dilakukan untuk mengetahui produktivitas sapi. Penelitian ini menunjukkan bahwa kondisi mikroklimat kandang A memiliki suhu, kelembapan, THI, dan ammonia yang lebih rendah, serta kecepatan angin yang tinggi dibanding dengan kandang B. Hal ini berimplikasi terhadap nilai fisiologis maupun produktivitas sapi pada kandang A yang lebih baik dibanding sapi pada kandang B. Walaupun kedua kandang menunjukkan tanda-tanda stres sedang dengan THI (80,69, The research aimed to study the physiological response of beef cattle to different microclimatic characteristics of cages in Terbanggi Besar, Central Lampung District. Ten beef cattle, five each, were placed in two different pens. Cage A was in an open-green environment with an enclosure height of 4 meters, while cage B was in a residential environment with an enclosure height of 3 meters. Microclimate profile measurements were taken three times a day, while physiological values (rectal temperature, heart rate and respiratory frequency) were taken twice a day. Daily body weight gain (PBBH) measurements were taken to determine cattle productivity. This study showed that the microclimate conditions of cage A had lower temperature, humidity, THI, and ammonia, as well as higher wind speed compared to cage B. This has implications for the physiological values of cattle. Although both pens showed signs of moderate stress with THI (80.69
Keyword: Terbanggi Besar, physiological response, microclimate of cage, cattle

Judul: Konstruksi Hukum Grup Kurva Eliptik Atas F3m
Abstrak: Elliptic curves upon F3m can be divided in two cases, i.e. supersingular and nonsupersingular case. Based on group laws on elliptic curves, a new arithmetic upon F3m can be formulated as an addition process of two random points on the curve. This addition process can then be applied to the ElGamal algorithm.
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