Judul: Tingkah laku menyusu pada anak domba Garut (Suckling behaviour in Garut lambs)
Abstrak: Tingkah laku menyusu merupakan salah satu pola hubungan anak dengan induknya yang sangat berkaitan dengan kemampuan anak untuk dapat bertahan hidup. Penelitian ini dilakukan pada bulan Oktober sampai Desember 1998 di Balitnak, Jalan Pajajaran, Bogor. Tujuan penelitian ini adalah untuk mempelajari tahapan tingkah laku menyusu, mengetahui puncak waktu, frekuensi serta lama waktu menyusu pada anak domba Garut. Pengamatan dua minggu pertama dilakukan selama 24 jam untuk melihat tingkah laku umum dan menentukan rentang waktu tertinggi tingkah laku menyusu. Diperoleh kisaran waktu tertinggi selama sembilan jam, yang terbagi dalam empat waktu pengamatan, yaitu pagi (pukul 05.00-07.00), siang (pukul 12.00- 15.00), sore (pukul 15.00-18.00) dan malam hari (pukul 21.00-22.00). Materi penelitian ini menggunakan 23 ekor anak domba Garut berumur sekitar dua minggu yang terdiri atas tujuh ekor anak domba jantan tipe kelahiran tunggal dan tiga ekor betina tipe kelahiran tunggal serta delapan ekor jantan tipe kelahiran kembar dan lima ekor betina tipe kelahiran kembar dengan 16 ekor induk betinanya. Pengamatan secara makro untuk melihat tingkah laku umum (harian) anak domba Garut. Pengamatan mikro untuk mengamati tahapan tingkah laku menyusu. Penelitian dilakukan dalam Rancangan Percobaan Tersarang. Faktor utama adalah tipe kelahiran, jenis kelamin sebagai sub faktor yang tersarang pada tipe kelahiran dan tingkatan umur (minggu) sebagai sub faktor yang tersarang pada tipe kelahiran dan jenis kelamin. Pengaruh perlakuan dipelajari dengan analisis ragam dan uji Tukey. Hasilnya menunjukkan bahwa tahapan tingkah laku menyusu pada anak domba Garut meliputi mengembik, mencari induk, mencari puting, mendorong puting, berebut puting, menjilat puting, menghisap puting, berlutut, menggerakkan ekor dan melepaskan puting. Mendorong puting merupakan aktivitas terbanyak dilakukan. Persentase tingkah laku menyusu anak domba Garut sebesar 18,76% dari keseluruhan tingkah laku harian. Tingkah laku mengembik dipengaruhi secara nyata (P<0,05) oleh tipe kelahiran, namun frekuensi anak jantan tunggal tidak berbeda dengan anak betina tunggal dan anak jantan kembar tidak berbeda dengan anak betina kembar, sedangkan tingkatan umur berpengaruh sangat nyata (P<0,01) terhadap tingkah laku mengembik. Anak jantan kembar lebih sering mengembik dan frekuensi mengembik tertinggi pada awal masa menyusu....
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Judul: Tingkah Laku Anak Domba Garut Setelah Lahir Yang Diberi Minyak Biji Matahari Dalam Ransum Induknya
Abstrak: Garut ewes are small ruminants that have the prolific genetic potential to be developed as Good Farming Practice. The genetic potential must be supported by a good quality of feed. Sunflower seed oil which has advantages as a source of linoleic fatty acids that can improve reproductive efficiency. Behavior is one of the important aspects related to maintenance management and handling of livestock that need to know the effect of feed to animal welfare. The purpose of this research was to identify and evaluate the lamb behavior of garut after born with addition sun flower seed oils. The number of observation were 18 of sheep. Experiment research consists of TL0 (control), TL4 (4% addition of sunflower seed oil), and TL6 (6% addition of sunflower seed oil). This research used completely randomized design, the data were analyzed by ANOVA, and significantly different data using Tukey test. Parameter behavior measured were standing first time, suckling first time, suckling duration first time, suckling frequency, vocal frequency, laying frequency, standing frequency, moving of tail frequency, and scramble nipples especially for twins. The results showed standing and suckling first time, vocal, standing, moving of tail was significantly affect (P<0.05) on treatment. The addition of sunflower oil by 4% and 6% affected behavior of lamb garut after born
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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