R. A. Eigenberg

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The microcomputer-based datalogger system described in this report provides excellent flexibility for accurate recording of signals from a variety of sensors at programmable intervals. The small size of the unit permits applications in many research situations in which physiological and microclimate records are required from unrestrained animals. Data(More)
A committee was formed consisting of both animal scientists and agricultural engineers to evaluate and update current ASAE standards. An intake minus retention model was developed to estimate nutrient excretion. This approach allows users (producers, engineers, etc.) to develop site specific information based on known variables such as protein or phosphorus(More)
Analysis of feeding behavior of group housed growing–finishing pigs" Keywords: Age Animal density Feeding behavior Group housed pigs Health RFID a b s t r a c t Feeding behavior and time spent eating contains valuable information that can be used for managing livestock, identifying sick animals, and determining genetic differences within a herd. Individual(More)
Respiration rates were included as one measure in a study investigating bioenergetic responses of growing–finishing swine to heat challenges. Respiration rate monitors were designed around a commercially available acoustic transducer and a small battery–powered microcomputer. The monitors were designed, fabricated, and tested to provide continuous records(More)
Emission of volatile organic compounds after land application of cattle manure" (2014). 1207 Beef cattle manure can serve as a valuable source of nutrients for crop production. However, emissions of volatile organic compounds (VOCs) after land application may pose an odor nuisance to downwind populations. This study was conducted to evaluate the effects of(More)
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