Judul: Karakteristik Produksi dan Potensi Pengembangan Kerbau Rawa pada Daerah Basah dan Kering di Kabupaten Bima
Abstrak: The purpose of this research was to study the characteristics and potential production of swamp buffalo in wet and dry areas of Bima regency. The study used survey and direct observation methods on the targeted areas. The primary and secondary data were collected and analyzed descriptively. The buffaloes in Belo district were semi-intensively reared, whereas those in Wera district were extensively reared. The buffalo in Belo district had sex ratio, age of first mating, age of first parturition, calving rate, calf crop, calf mortality, periode of first mating after calving, and calving interval were 1:3, 3.4 years, 4.2 years, 91.1%, 76.2%, 12%, 2.4 months, 15.9 months respectively. Meanwhile, the reproductive characteristics in Wera district were 1:3, 3.3 years, 4.1 years, 84.2%, 70.3%, 17.1%, 2.3 months 14.4 months respectively. The buffaloes in Belo had BCS 2 (35%), BCS 3 (60%), and BCS 4 (5%), whereas in Wera have BCS 2 (45%), BCS 3 (50%) and BCS 4 (5%). In general, the buffaloes In Belo had better performance compared to that in Wera district. However, the potential land and feed resources for development of buffalo in Wera district still high compared with Belo district.
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Judul: Produktivitas Kerbau Rawa di Kecamatan  Muara Muntai, Kabupaten Kutai Kartanegara, Kalimantan Timur
Abstrak: The purpose of this reseach was to investigate productivity of swamp buffalo in Pulau Harapan Village. The reseach was conducted from February to May 2009 in Muara Muntai Subdistric, Kutai Kartanegara Regency, East Kalimantan. The number of observation were 16 buffaloes (bull, dam, male and female calves 4 each). The results were as follow: the ratio between male and female was 1:4; first oestrus was at 2.6 years of age with the average duration of heat about 8 days and the oestrous cycle about 18.5 days. The first conception occured at 2.8 years with the gestation period about I year. Birth rate and calf crop were relatively high: 75% and 67%. The difference of birth rate and calf crop caused mortality about 11% at 1.7 months of age. Service per conception and conception rate were not known because the buffalo does not use artificial insemination and natural mating was not controlled by breeder. An average body weight of calves at 0 to 24 months were 201.58±81.27 kgs and adult buffaloes at 3-10 years were 372.66±95.25 kgs. The development prospect of buffalo in Muara Muntai was analysed with SWOT from internal and external aspects. Internal aspect include livestock land natural resource, man power, institution, and maintenance system, whereas external aspect include climate, meat demand, price, rivalry, sociocultural, and socioeconomy. The strategies formula of development livestock based on the result of SWOT analysis are reduced mortality, increasing productivity of forage with high quality, increasing harvest weight, repairing reproduction aspect, and deciding prohibition order disimissal and slaughtering breed of bufallo. Keywords: swamp buffalo and productivity
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Judul: Sintesis dan Pencirian Kompleks Fe(III)-Kuersetin
Abstrak: Quercetin belongs to flavonols which is able to chelate metal ions. Quercetin may chelate metal ions at 3’,4’-catechol, 3- or 5-hydroxycromone sites. In this study, quercetin was complexed with Fe(III). The complex with Fe(III) ions from FeCl3·6H2O was more stable than the complex derived from Fe(NO3)3·9H2O. The quercetin was yellow in color and showed maximum wavelengths (λ􀭫􀭟􀭶) at 250 and 370 nm. The Fe(III)-quercetin complex from Fe(NO3)3·9H2O was yellowish green with 􀟣􀭫􀭟􀭶 at 280 and 420 nm, whereas that from FeCl3·6H2O was dark green with 􀟣􀭫􀭟􀭶 at 280 and 430 nm. The 􀟣􀭫􀭟􀭶 shift indicated that the complex was formed at 3-hydroxychromone site. The Fe(III)- quercetin complex was formed with 1:1 metal-ligand mole ratio based on atomic absorption spectrophotometry analysis and the X-ray diffractogram showed that the crystallinity of the complex was 37%.
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