Judul: Susut Bobot dan Waktu Rekondisi Pedet Jantan Sapi Peranakan Friesian Holstein (PFH) pada Proses Transportasi dengan Perbedaan Kepadatan
Abstrak: Transportasi ternak di Indonesia khususnya jalur darat belum memiliki standar, ukuran dan jenis secara spesifik, sehingga dapat menjadikan ternak stres selama proses transportasi. Penelitian ini bertujuan untuk mengetahui susut bobot dan waktu rekondisi pasca transportasi pada pedet Peranakan Friesian Holstein (PFH) dengan perbedaan kepadatan yaitu ±0.43 m2ekor-1 (di masyarakat) dan ±0.58 m2ekor-1 (FAWC 2007). Penelitian ini menggunakan 28 ekor pedet (PFH) dengan rata-rata umur ±4 bulan dan rata-rata bobot badan 98.82±5.08 kg yang ditransportasikan selama 6 jam. Peubah yang diamati meliputi iklim mikro (suhu dan kelembapan), nilai THI (Temperature Humidity Index), penyusutan bobot badan, waktu rekondisi, tingkah laku loading dan unloading serta tingkah laku pasca transportasi. Hasil penelitian menunjukan selama transportasi nilai THI (Temperature Humidity Index) dikisaran 77.64-81.00, sehingga ternak mengalami stres ringan dan sedang. Pasca transportasi ternak mengalami stres ringan dengan nilai THI (Temperature Humidity Index) sebesar 77.31. Penyusutan bobot badan pasca transportasi sebesar 8.6% (8.5±2.71 kg) dan waktu rekondisi terjadi pada hari ke-3 dan ke-4. Kepadatan selama transportasi tidak menyebabkan perbedaan penyusutan bobot badan dan waktu rekondisi. Tingkah laku yang paling sering dimunculkan pedet (PFH) saat loading adalah berhenti sejenak dan saat unloading adalah melompat. Tingkah laku yang dominan dilakukan pasca pengangkutan adalah makan dan minum.
Keyword: PFH, recovery, space allowance, tingkah laku

Judul: Physiological Response, Behavior and Performance of Ongole Grade and Local Crossbreed Cattle on Short Distance Transportation
Abstrak: Transportasi merupakan elemen penting dalam rantai industri sapi pedaging. Penelitian ini bertujuan mengevaluasi respon fisiologis, tingkah laku dan performa Sapi Peranakan Ongole dan Sapi Silangan Lokal selama rekodisi pada proses transportasi jarak dekat. Penelitian ini menggunakan Sapi Peranakan Ongole (PO) dan Silangan Lokal Jantan masing-masing 8 ekor dengan umur I1-I2 (18-30 bulan). Rataan bobot badan Sapi Peranakan Ongole dan Silangan Lokal berturut-turut adalah 291,5±23,5 kg dan 289,0±26,4 kg. Peubah yang diamati meliputi kondisi mikroklimat lingkungan, respon fisiologis, tingkah laku dan performa ternak. Hasil penelitian menunjukkan bahwa berdasarkan nilai THI, sapi mengalami stres panas sedang selama transportasi dan stres panas ringan selama rekondisi. Respon fisiologis dan penyusutan bobot badan Sapi Peranakan Ongole dan Silangan Lokal adalah sama. Tingkah laku dominan saat proses pemuatan (loading) dan penurunan (unloading) adalah adalah tergelincir yaitu masing-masing sebesar 30,8% dan 32,7%. Rataan penyusutan bobot badan Sapi Peranakan Ongole 7,0±4,0 kg (2,5%) dan Sapi Silangan Lokal 9,3±5,3 kg (3,1%). Selanjutnya lama rekondisi Sapi Peranakan Ongole dan Silangan Lokal sama yaitu selama 10 hari., Transportation is an important element in beef industry. This study aims to evaluate the physiological response, behavior and performance during recondition period of Ongole and Local Crosbreed Cattle in short distance transportation. This study used 8 Ongole Crossbreed and 8 Local Crossbreed Cattle bull with average age of I1-I2 (18-30 months). The average body weight of Ongole and Local Crossbreed Cattle were 291,5±23,5 kg and 289,0±26,3 kg respectively. The parameters observed were environmental microclimate conditions, physiological responses, behavior and performance of cattle. The results of THI showed that cattle was on medium heat stress during transportation and mild heat stress during recovery time. Physiological response and body weight loss of Ongole grade and Local Crossbreed Cattle were similar. The dominant behavior during loading and unloading process was slips, which were 30,8% and 32,7% respectively. Average body weight loss of Ongole grade and local crosbreed were 7,0±6,8 kg (2,5%) and 9,3±5,3 kg (3,1%). Furthermore, length of recovery time of Ongole and Local Crosbreed Cattle was similar for ten days.
Keyword: respon fisiologis, sapi peranakan ongole, sapi silangan lokal, tingkah laku, transportasi

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell