Judul: Estimasi Bobot hidup Berdasarkan Ukuran Linier Tubuh pada  Pedet Lepas Sapih Sapi Simmental dan Limousine
Abstrak: Estimasi bobot hidup pada seekor sapi dapat memudahkan dalam mengetahui bobot aktualnya. Salah satu cara mengestimasinya dengan menggunakan ukuran linier tubuh sapi. Penelitian ini bertujuan menduga bobot hidup berdasarkan ukuran linier tubuh pedet lepas sapih Simmental dan Limousine. Penelitian menggunakan data sekunder yang diperoleh dari Balai Pembibitan Ternak Unggul dan Hijauan Pakan Ternak Padang Mengatas. Total sebanyak 128 ekor Sapi Simmental dan Limousine dengan kisaran umur 6-18 bulan, dengan perbandingan 26 ekor jantan Simmental, 50 ekor betina Simmental, 19 ekor jantan Limousine, dan 33 ekor betina Limousine digunakan pada penelitian ini. Metode analisis data dengan regresi linier berganda. Penelitian ini menunjukkan bahwa pendugaan bobot hidup dengan menggunakan ukuran linier tubuh pada sapi Simmental dan Limousine pada fase pedet lepas sapih menghasilkan persamaan Y = -401,98 + 0,96(PB) + 2,71(LD) + 1,15(TP) dengan nilai koefisien determinasi (R2) sebesar 90,91% dan nilai standar error 13,07kg. Secara keseluruhan hasil pendugaan tidak berbeda nyata dengan bobot aktualnya., Live weight estimation in a cow can make it easier to know the actual weight. One way of estimating it is by using the linear size of the cow's body. The aim of this study was to estimate live weight based on body linear measurements of Simmental and Limousine weaning calves. The study used secondary data obtained from the Center for Superior Cattle Breeding and Forage Animal Feed Padang Atas. A total of 128 Simmental and Limousine cattle with an age range of 6-18 months, with a comparison of 26 Simmental males, 50 Simmental females, 19 Limousine males, and 33 Limousine females were used in this study. Method of data analysis with multiple linear regression. This study showed that the estimation of live weight using linear body measurements in Simmental and Limousine cattle in the weaning calf phase resulted in the equation Y = -401.98 + 0.96(PB) + 2.71(LD) + 1.15(TP). Result equation with a coefficient of determination (R2) of 90.91% and a standard error of 13.07kg. Overall, the estimation results are not significantly different from the actual weights.
Keyword: body linear, live weight, regression, body linear, live weight, regression

Judul: Penampilan produksi dan pendugaan bobot hidup berdasarkan ukuran-ukuran linier tubuh sapi lokal dan sapi persilangan
Abstrak: Cattle live weight could be determined subjectively or objectively based on formulas such as Schoorel and Winetr equations. The aim of this study is to examine the growth performances of beef cattle resulted from artificial insemnination program using semens of several breeds and to predict body weight of cattle resulted from artificial insemination program using semens of several breeds and to predict body weight of cattle using linier body measurement (body length, chest depth, whiteres height, hearth girth and hearth width).
Keyword: 

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%.
Keyword: