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Complexity of Coupled Human and Natural Systems
TLDR
Synthesis of six case studies from around the world shows that couplings between human and natural systems vary across space, time, and organizational units and have legacy effects on present conditions and future possibilities.
A mechanistic model for predicting the nutrient requirements and feed biological values for sheep.
The Cornell Net Carbohydrate and Protein System (CNCPS), a mechanistic model that predicts nutrient requirements and biological values of feeds for cattle, was modified for use with sheep. Published
Kinetics of fiber digestion from in vitro gas production.
TLDR
A modified dual pool logistic equation, with a single lag value, was selected to model the in vitro digestion of these substrates and was able to predict adequately both the input composition and the kinetic parameters for a defined mixture and gave a good fit to data from all the single and mixed substrates tested.
Coupled Human and Natural Systems
TLDR
Untangling complexities, such as reciprocal effects and emergent properties, can lead to novel scientific discoveries and is essential to developing effective policies for ecological and socioeconomic sustainability.
Computerized monitoring of gas production to measure forage digestion in vitro.
TLDR
The techniques reported in this paper were developed to facilitate the study of the kinetics of forage digestion in vitro by measuring gas production by a modified NDF method that allows determination of extent of digestion at the end of an incubation in which gas production has been monitored.
Prediction of ruminal volatile fatty acids and pH within the net carbohydrate and protein system.
TLDR
In a review of literature data, effective NDF (eNDF) provided a better correlation with ruminal pH than forage or NDF, and individual VFA fractions were inadequately predicted.
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