John Doorenbos

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Aggregating rumen degradation characteristics of different carbohydrate components into the term modeled rapidly degradable carbohydrates (mRDC) can simplify diet formulation by accounting for differences in rate and extent of carbohydrate degradation within and between feedstuffs. This study sought to evaluate responses of lactating dairy cows to diets(More)
The ability to monitor dairy cow feeding behavior and activity could improve dairy herd management. A 3-dimensional accelerometer (SensOor; Agis Automatisering BV, Harmelen, the Netherlands) has been developed that can be attached to ear identification tags. Based on the principle that behavior can be identified by ear movements, a proprietary model(More)
Digital textbooks have been growing popular as a lower-cost and more interactive alternative to paper books. Despite the recent rise in adoption, little is known about how people use these resources. Prior studies have investigated student perceptions of digital textbooks in the classroom via interviews and surveys but have not quantified actual usage(More)
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