Judul: Korelasi Tingkah Laku Makan dengan Performa Kambing Marica Jantan yang Diberi Pakan Berbeda
Abstrak: Kambing marica sebagai plasma nutfah endemik di Indonesia memiliki kemampuan daya adaptasi yang cukup baik. Kambing marica yang ada di Sulawesi Selatan mengalami penurunan populasi disebabkan karena manajemen pakan yang kurang baik sehingga berdampak pada penurunan performa. Penelitian ini bertujuan untuk mengkaji tingkah laku makan dari kambing marica yang diberi pakan berbeda serta korelasinya terhadap pertambahan bobot badan harian dan tingkat konsumsi. Penelitian ini menggunakan delapan ekor kambing marica jantan yang dipelihara pada kandang individu selama delapan minggu. Perlakuan pakan yang diberikan selama penelitian adalah pakan komplit berupa konsentrat dan pakan hijauan (Indigofera sp. dan Pennisetum purpureum). Berdasarkan hasil uji korelasi Pearson menunjukkan bahwa terdapat hubungan signifikan antara parameter tingkah laku makan dengan pertambahan bobot badan harian dan tingkat konsumsi (P<0,05). Peubah tersebut diantaranya yaitu tingkah laku deglutisi terhadap pertambahan bobot badan harian kambing marica yang diberi pakan komplit, tingkah laku deglutisi dan lama ruminasi terhadap konsumsi dari kambing marica yang diberi pakan hijauan dan periode ruminasi terhadap konsumsi dari kambing marica yang diberi pakan hijauan. Nilai korelasi positif menunjukkan adanya hubungan positif dan signifikan antara tingkah laku deglutisi dan lama ruminasi terhadap performa dari kambing marica. Nilai korelasi yang bernilai negatif menunjukkan terdapat hubungan linier negatif antara periode ruminasi terhadap tingkat konsumsi kambing marica., Marica goat is an endemic germplasm in Indonesia, known for its good abilities and adaptability. The population of Marica goats in South Sulawesi has begun to decline and is at risk of extinction due to poor feed management that affect the performance. The objective of this study is to investigate the feeding behavior of Marica goats under different feeding regimes and to determine the correlation with daily body weight gain and consumption levels. The Marica goat used in this research were eight head, housed in individual cages for eight weeks. The feed given was a complete feed consisting of concentrate and green fodder (Indigofera sp. and Pennisetum purpureum). The result of Pearson correlation test showed that there were parameters of feeding behavior that had a significant relationship with daily body weight gain and level of consumption (P<0.05). These parameters included gorging behavior on daily body weight gain of Marica goats fed complete diet, gorging behavior and rumination time on consumption of Marica goats fed forages, and rumination period on the consumption of Marica goats fed complete diets. A positive correlation value indicates that there is a positive and significant relationship with gorging behavior and rumination time on performance of Marica goats. On the other hand, a negative linear relationship with rumination period on the consumption of Marica goats.
Keyword: comsumption, daily body weight gain, deglutition, feeding behavior, marica goat

Judul: Konsumsi dan Kecernaan Nutrien Kambing Sapera Prasapih yang Diberi Milk Replacer dengan Sumber Protein Berbeda
Abstrak: Tujuan dari penelitian ini adalah mengukur konsumsi dan mengevaluasi kecernaan nutrien pada kambing Sapera prasapih yang diberi ransum milk replacer yang mengandung tepung maggot atau tepung bungkil kedelai. Penelitian ini menggunakan 9 ekor kambing Sapera prasapih, dengan bobot badan rata-rata 10,59 ± 1,59 kg yang diberi pakan perlakuan. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 3 x 3. Perlakuan tersebut adalah P1 (susu induk kambing), P2 (milk replacer mengandung tepung maggot), P3 (milk replacer mengandung tepung bungkil kedelai). Parameter yang diukur adalah konsumsi nutrien dan kecernaan nutrien. Data dianalisis menggunakan ANOVA dan perbedaan signifikan dievaluasi lebih lanjut menggunakan Uji Duncan. Hasil penelitian menunjukkan bahwa perlakuan berpengaruh nyata (P<0,05) terhadap konsumsi bahan kering, protein kasar, lemak kasar, serat kasar, BETN, TDN, serta kecernaan protein kasar dan lemak kasar, tetapi tidak berpengaruh nyata kecernaan bahan kering, serat kasar, dan BETN. Simpulan dari penelitian ini, Pemberian milk replacer mengandung tepung maggot dan tepung bungkil kedelai meningkatkan konsumsi bahan kering, protein kasar, lemak kasar, BETN, dan TDN, serta kecernaan protein kasar. Tetapi tidak berpengaruh terhadap kecernaan bahan kering, serat kasar, dan BETN. Pemberian milk replacer mengandung tepung maggot dan tepung bungkil kedelai menurunkan konsumsi serat kasar., The aim of this research was to measure consumption and evaluate nutrient digestibility in preweaned Sapera goats by administering a milk replacer containing maggot meal or soybean meal. This research used 9 pre-weaned Sapera goats, with an average body weight of 10.59 ± 1.59 kg fed on diet treatments. This research used a Randomized Block Design (RAK) with 3 x 3. The diet treatments were P1 (goat milk), P2 (milk replacer containing maggot meal), and P3 (milk replacer containing soybean meal). The parameters measured were nutrient consumption and nutrient digestibility. The data were analyzed using ANOVA and significant differences were further analysed using Duncan Test. The results showed that the treatment significantly affected (P<0.05) the consumption of dry matter, crude protein, crude fat, crude fiber, BETN, and TDN, as well as digestibility of crude protein, but did not significantly affect digestibility of dry matter, crude fat, crude fiber, and BETN. The conclusion from this study, feeding milk replacer containing maggot meal and soybean meal increased dry matter, crude protein, crude fat, BETN, and TDN, as well as crude protein digestibility. But it did not affect the digestibility of dry matter, crude fiber, and BETN. Feeding milk replacer containing maggot meal and soybean meal increased reduces crude fiber consumption.
Keyword: maggot, milk replacer, nutrient consumption, nutrient digestibility, sapera goat, soybean

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition