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: Karakteristik Fenotipik Kerbau Rawa (Swamp Buffalo) Di Kabupaten Bogor
Abstrak: The objectives of the present study were to estimate variation of phenotypic characteristic, population structure and rearing management system of swamp buffalo from four sub-districts of Cibungbulang, Pamijahan, Nanggung and Sukajaya in Bogor district, West Java. A total of 238 swamp buffalo (101 males and 137 females) were used in this study buffalo were consisted of 54 heads swamp buffaloes from Cibungbulang (27 males and 27 females), 40 heads swamp buffaloes from Pamijahan (23 males and 17 females), 79 heads swamp buffaloes from Nanggung (29 males and 50 females) and 65 heads swamp buffaloes from Sukajaya (22 males and 43 females). Body dimension studied were wither height, hip height, hip width, body length, chest circumference, chest depth and chest width. Data obtained were analyzed by t test analysis with minitab package program version 14.0, while qualitative data were analyzed by descriptive analysis. The result showed that the body measurement of buffaloes which have age from 0-1 years almost the some in all districts observed. However, at the age 1 to 3 years in male observed in Pamijahan higher than Cibungbulang, Nanggung and Sukajaya (P<0,05). At the age up to 3 years in female observed in Cibungbulang higher than in Pamijahan, Sukajaya and Nanggung (P<0,05). The coat color of buffalo in Bogor district dominantly by dark gray (70,8%) followed light gray (27,4%) and albino (1,8%). Feet coat color dominantly by white color (76,2%) followed by gray color (13,7%) and black color (10,1%). The whorls almost found in head (86,3%), hip (79,2%), chest (72,1%) and under stomach (44,6%). Keywords : swamp buffaloes, quantitative characteristic, qualitative characteristic
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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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