Each cattle breed can grow optimally at suitable environmental condition. bali cattle has better thermoregulation ability in incompaing with ongole crossbreed cattle in lowland. Simental or limousin cattle is from temperate zone with cold temperature area and intensive breeding management. Based on those considerations, this research aimed was to investigate the production performance of bali cattle, ongole crossbreed, limousine crossbreed and simental crossbreed cattle at different altitudes and seasons in Lampung Province. Research used adult female cattle consisting of 82 bali cattle, 138 ongole crossbreed cattle, 54 limousin crossbreed cattle and 32 simental crossbreed cattle. The observed variables as production response were body height, chest size and Body Condition Score (BCS). Data was then analyzed using Randomized Complete Design. Based on body size (height and chest circumference) and BCS, it can be concluded that the Bali cattle suitable to be developed in the lowlands, ongole crossbreed cows in the highlands, limousine crossbreed in the lowlands and simmental crossbreed suitable to be developed in both the lowlands and highlands. ABSTRAK Sapi bali mempunyai kemampuan termoregulasi yang lebih baik dibandingkan dengan sapi peranakan ongole di dataran rendah. Sapi simental atau limousin terbiasa hidup di daerah dengan suhu udara yang dingin dan tatalaksana pemeliharaan intensif. Berdasarkan hal tersebut maka tujuan penelitian ini adalah mengetahui kemampuan produksi sapi bali, sapi peranakan ongole, sapi peranakan limousin, dan peranakan simental pada beberapa ketinggian tempat dan musim yang berbeda di Provinsi Lampung. Materi yang digunakan adalah sapi betina dewasa: yaitu sapi bali 82 ekor, sapi peranakan ongole 138 ekor, sapi peranakan limousin 54 ekor, dan sapi peranakan simental 32 ekor. Peubah yang diamati untuk respons produksi adalah tinggi badan, lingkar dada, dan Body Condition Score (BCS). Penelitian ini menggunakan Rancangan Acak Lengkap. Hasil penelitian menunjukkan bahwa berdasarkan ukuran tubuh (tinggi dan lingkar dada) serta BCS, sapi bali cocok dikembangkan di dataran rendah. Sapi PO mempunyai ukuran tubuh sama pada ketiga ketinggian tempat namun BCS terbaiknya di dataran tinggi. Sapi peranakan limousin ternyata penampilan produksi terbaiknya baik musim hujan maupun musim kemarau di dataran rendah. Sementara sapi peranakan simental cocok dikembangkan di dataran rendah dan dataran tinggi.

This study was aimed to determine the fat content and the preferences of salted duck egg enriched with black and white pepper. The experimental was designed as completely randomized design with 2 factors. First factor was concentration of black and white pepper (10%, 15% and 20%), while the second factor was length of salting period which are 7 and 10 days. Fat content was determined by Soxhlet extraction method, and the product preferences was determined by using hedonic scale test. The preference test was done at white egg and yolk color, taste of saltiness, aroma and gritty texture. Results showed that, fat content of salted duck egg with pepper addition tend to decrease along with the duration of immersion. According to the preferences test, salted duck egg at 20% black and white pepper were mostly preferred at 10 and 7 days salting period, respectively.

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Zinc is essential for growth and cell division (mitosis and meiosis), sperm production, embryo development, and pregnancy. This study aims to determine the Zinc content of three rice varieties and their potential as ruminant feed. The research was done in Central Lampung in June 2020. The experiment used a randomized block design with three varieties and three replications. Each variety (Inpari IR Nutrizinc, Ciherang, Inpari 32) was planted in 50 m2. The variables are plant height (cm), stump height (cm), straw height (cm), straw weight and grain (kg), straw weight/50 m2 (kg), straw weight/ha (kg) and the Zn content in straw. The data obtained were analyzed using the R statistic. The result did not significant differences in all variables. However, Inpari 32 has the highest average plant height, stump height, straw height, and grain weight, while Inpari IR Nutrizinc has the highest average straw weight/ha (7,970.67 ± 1,135.84 kg). The zinc content of Inpari IR Nutrizinc was also the highest at 49.85 ppm/10 g, followed by Inpari 32 (35.40 ppm/10 g), and the lowest was Ciherang (34.08 ppm/10 g). In conclusion, rice straw of Inpari IR Nutrizinc has the potential to be used as a ruminant feed.

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