Agricultural Research, Education, and Extension Complex The Agricultural Research, Education, and Extension Complex at Langston University is home to the offices and Central Laboratory of the E (Kika) de la Garza Institute for Goat Research. The Central Laboratory is composed of a Main Lab, Wet Chemistry Lab, Histology Lab, Fiber Lab and two General Labs. These labs and the technical laboratory staff provide analytical support to all research conducted at the Institute and house the state of the art equipme
Spectrophotometer This UV/VIS spectrophotometer is one of the most popular instruments in the laboratories of the E (Kika) de la Garza Institute for Goat Research. It measures the absorbance of light in solutions. This machine is highly accurate and user friendly as it is connected to a computer and is equipped for automatic sample analysis.
Direct Current Plasma Analyzer The Direct Current Plasma Analyzer measures mineral concentrations in feed, digesta, blood, urine, tissues, etc. It can also be used to measure concentrations of elements that researchers use as markers to characterize the flow of digesta through the digestive tract.
Super Critical Fluid Extractor The Super Critical Fluid Extractor extracts lipid or fat from samples such as feed, blood or digesta by using carbon dioxide. This new machine is very environmentally friendly and replaces an older process that used organic solvents to extract fat. Once the fat has been extracted, it can be further analyzed in a gas chromotagraph to determine the fatty acid composition.
Super Critical Fluid Extractor
Stable Isotope Mass Spectrometer The Stable Isotope Mass Spectrometer consists of an Automated Nitrogen-Carbon Analyzer (ANCA) and an Automated Breath Carbon Analyzer (ABCA). The instrument measures the concentration/enrichment of two stable isotopes, Carbon-13 and Nitrogen-15, that are used in nutritional/metabolism research. For example, Carbon-13 is used in the "CO2-entry rate" technique to determine energy expenditure by animals when under field conditions, such as grazing.
Gas Chromatograph This flame ionization gas chromotograph measures concentrations of both short and long chain fatty acids. Common uses of the instrument are for determining levels of volatile fatty acids in ruminal fluid and blood and concentrations of longer chain fatty acids in milk and meat.
Autoanalyzer II The Autoanalyzer II is essentially an automated, continuous flow spectrophotometer. Rather than adding the needed chemicals to each sample by hand, this machine uses a system of small tubes that automatically mix samples with correct amounts of appropriate chemicals and carry the mixture through the photochamber. The autoanalyzer is an efficient way to analyze large numbers of samples and can read up to 80 samples per hour.
Automated Ion Analyzer The Automated Ion Analyzer is essentially an automated, continuous flow spectrophotometer. Rather than adding the needed chemicals to each sample by hand, this machine uses a system of small tubes that automatically mix samples with correct amounts of appropriate chemicals and carry the mixture through the photochamber. previous photo
Glucose and Lactic Acid Analyzer Glucose and Lactic Acid Analyzer determines the levels of glucose and lactid acid in whole blood.
Inductively Coupled Plasma Emission Spectroscopy The Inductively Coupled Plasma Emission Spectroscopy measures mineral concentrations in feed, digesta, blood, urine, tissues, etc. It can also be used to measure concentrations of elements that researchers use as markers to characterize the flow of digesta through the digestive tract.
Gamma Counter The Gamma Counter measures the radioactive isotope Iodine-125, which can be used in assays for levels of hormones such as glucagon, cortisol, IGF, T3 and T4. previous photo
Research-grade Microwave The Research-grade Microwave oven is a heavy duty version of the home microwave oven, with a special carousel and vents. It is used in hydrolyzing protein samples for amino acid analysis and in digesting feed samples for trace mineral analysis. previous photo
Networked Analytical Scales All of the central laboratory's analytical scales are networked to personal computers. Here, Terry Watson weighs a sample. The weight of the sample is automatically logged into a spreadsheet software program, which is running on the computer behind Terry.
Hemoximeter The hemoximeter measures the hemoglobin content of blood as well as the amount of oxygen carried by hemoglobin and methemoglobin. These measures enable scientists to study energy usage of body tissues such as skin, portal-drained viscera that consists primarily of the digestive tract, and liver. previous photo
Freeze Dryer The Freeze Dryer is used to dry samples for analysis of constituents whose nature may be altered by conventional oven drying, such as for ammonia determination in digesta or condensed tannin analysis in forage. The sample is held below freezing while a vacuum pump pulls moisture in vapor away and over a condenser coil where the water freezes and is later discarded. previous photo
Bomb Calorimeter The bomb calorimeter measures the total, or gross, energy contained in feed, digesta, urine and tissue samples. A known weight of sample is placed into a container and submerged in water of a known temperature. The container is flooded with oxygen and ignited, combusting all organic matter. The energy of the combustion is transferred as heat to the surrounding water raising the temperature. This rise in temperature is then used to calculate the energy of the sample. The bomb calorimeter is
Ankom Fiber Analyzer The Ankom Fiber Analyzer measures concentrations of fiber fractions in feedstuffs and digesta. These fiber fractions are Neutral Detergent Fiber (NDF) composed mainly of cellulose, hemicellulose and lignin, and Acid Detergent Fiber (ADF) composed mainly of cellulose and lignin. Concentrations of NDF and ADF in feedstuffs have relevance to nutritive value for livestock. previous photo
High Pressure Liquid Chromatograph The High Pressure Liquid Chromograph (HPLC) is used primarily for amino acid analysis and can measure more than 20 amino acids. The HPLC is used in many studies, such as ones dealing with effects of different protein sources on animal growth and others concerning nutritional effects on composition of animal fiber. previous photo
Optical Fiber Diameter Analyzer The Optical Fiber Diameter Analyzer is a state of the art method to measure diameter of mohair and cashmere fiber and can be used on wool as well. A fiber sample from the microcorer is spread on a microscope slide and put under the microscope portion of the instrument. A video camera is connected to the computer that spots fibers and measures diameter. The computer measures 4000 fibers in 2 minutes and prints out the average fiber diameter and a diameter histogram. This instr
Microtome In the Histology Laboratory, skin samples are prepared for analysis. A Microtome slices waxed skin samples into ultra-thin strips that can be stained and mounted on microscope slides. previous photo
Microscope and monitor The prepared slide is then placed on this microscope and the image is projected to the monitor. A laboratory technician is able to measure fiber follicle diameter and determine the ratio of secondary to primary fiber follicles.