Judul: Strategi Pengembangan Sapi Bali (Bos javanicus) pada Sistem Pemeliharaan Ekstensif dan Semi Intensif Desa Tawali Kecamatan Wera Kabupaten Bima Nusa Tenggara Barat
Abstrak: West Nusa Tenggara has a program called “Bumi Sejuta Sapi” (NTB BSS). The highest population cattle in NTB was bali cattle. Tawali village in NTB was one of village which developed bali cattle in two farming system. Farming system in Tawali village were extensive and semi intensive. The aims of this study arranged development strategy of bali cattle in two diferrent farming system. Primary data obtained from 42 farmers who farmed with extensive farming systems and 16 farmers who farmed in semi intensive. Secondary data obtained from the village government and related agencies. The Strategies formula of development bali cattle with extensive farming system is purchase breed of bali cattle from the government and the private sector, making hay, using moor for the cultivation of forage with good quality and forming groups of farmers. The strategies formula of development bali cattle with semi intensive farming system is making a warehouse for food storage, organize training about recording of reproduction animal and recording about animal health with cooperation with the government, cooperation between members of the group to supply forage and meet regularly to exchange information between members of the group
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Judul: Produktivitas, Potensi dan Prospek Pengembangan Sapi Bali (Bos javanicus) di Desa Pa’rappunganta Kabupaten Takalar Sulawesi Selatan
Abstrak: Bali cattle is one of Indonesia indigenous cattle with high adaptivity of environment and feed. The aims of this study was to determine the productivity, potency, and development prospect of bali cattle in Pa'rappunganta village. This research was conducted from July to August 2011 in Pa’rappunganta village, Takalar region, South Sulawesi. Primary data was obtained through interviewed of 42 farmers. Secondary data was obtained from the village government and related agencies. Data of village profile, farming management and resources were analyzed descriptively. This study also analyzed reproductive characteristic, SWOT (strengths, weaknesses, opportunities and threats) and Increasement Population Capacity of Ruminant (IPCR). The results showed that the age of first oestrus in female bali cattle average was 2,1 years and age of first mating was 2,2 years. Service per conception (S/C) was on average 1,9 times and calving rate mean was 98,1%. Oestrus postpartum of bali cattle in this study was an average of 81.95 days, calving interval was 370±36 days and calf mortality was 5,8%. Result of IPCR analysis showed that capacity of ruminant increase was 137,97 Animal Unit. The result indicated that bali cattle still potential to be developed in Pa’rappunganta village. Result of SWOT analyzed and IPCR showed that bali cattle had a good prospect to be developed in Pa’rappunganta village.
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Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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