Judul: Panjang Puting dan Periode Laktasi sebagai Faktor Predisposisi Mastitis Subklinis pada Sapi Perah di KPSBU Lembang Kabupaten Bandung
Abstrak: In order to enhance practical approach on clinical diagnostic of subclinical mastitis, 72 dairy cattle at KPBSU Lembang Bandung District were addressed for this research. The objective of this research was to study the correlation of teat formation within several lactation periods to subclinical mastitis profile. The data of lactation period was collected from the farmer interview. Subclinical mastitis was tested using IPB-1 Mastitis Test and the length of teat was measured using measuring tape (cm). The data were taken then analyzed by Duncan test and Logistic regression. The highest correlation of subclinical mastitis, which also the most severe cased, was happened to dairy cattle with average teat length of 7.5 cm within the third and fourth lactation periods This result was accentuated that the teat length of dairy cattle in certain lactation period was subclinical mastitis predisposition. This finding was important for improving the milking management as well as clinical diagnosing of mastitis.
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Judul: Kajian Pengendalian Mastitis Subklinis melalui Pemberian Antibiotik pada Saat Kering Kandang di KPSBU Lembang, Jawa Barat
Abstrak: Mastitis merupakan masalah utama dalam tatalaksana usaha peternakan sapi perah karena dapat menurunkan produksi susu dalam jumlah besar. Salah satu upaya pengendalian penyakit di lapangan yaitu melalui pemberian antibiotik pada saat kering kandang. Penelitian ini dilakukan untuk mengetahui faktor pendorong peternak melakukan pemberian antibiotik pada saat kering kandang, hubungan pemberian antibiotik terhadap tingkat kejadian kasus mastitis subklinis dan pengaruh pemberian antibiotik terhadap peningkatan produksi susu. Sebanyak 110 peternak yang berasal dari lima Tempat Pelayanan Koperasi, KPSBU, Lembang dipilih secara acak. Penelitian dilakukan melalui wawancara terhadap responden dan pengujian mastitis subklinis dengan menggunakan pereaksi IPB-1. Hasil penelitian ini menunjukkan bahwa karakteristik peternak di wilayah KPSBU Lembang pada umumnya tua (47.28%), memiliki tingkat pendidikan tidak lulus SD-tidak lulus SMA (87.27%), pekerjaan utama beternak (72.7%), milik sendiri (95.5%), mempunyai pengalaman beternak lama (59.09%), aktif dalam pertemuan kelompok (78.2%) dan memiliki sapi laktasi kurang dari lima ekor (85.5%). Hasil penelitian menunjukkan bahwa faktor-faktor yang mendorong peternak melakukan pemberian antibiotik pada saat kering kandang adalah tingkat keaktifan peternak (OR = 4.05; SK = 1.36 - 12.04) dan jumlah sapi laktasi yang dimiliki (OR = 5.3; SK = 1.43 - 19.58). Pemberian antibiotik pada saat kering kandang dapat meningkatkan produksi susu sebesar 620.5 (76.3 - 1164.7) liter/ekor/tahun.
Keyword: mastitis subklinis, pengobatan kering kandang, produksi susu

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