Overall model description

Part of the EAAP – European Federation of Animal Science book series (EAAP, volume 30)


The NorFor system is a semi-mechanistic, static and science-based model, which predicts nutrient supply and requirements for maintenance, milk production, growth and pregnancy in cattle. The model can be divided into five parts: (1) an input section describing characteristics of the animal and feeds available; (2) a module simulating processes in the digestive tract and the intermediary metabolism, termed the feed ration calculator (FRC); (3) a module predicting feed intake; (4) a module predicting the physical structure of the diet; and (5) an output section describing nutrient supply, nutrient balances and production responses (Figure 2.1).


Crude Protein Feed Intake Volatile Fatty Acid Neutral Detergent Fibre Nutrient Balance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Wageningen Academic Publishers 2011

Authors and Affiliations

  1. 1.TINE and the Norwegian University of Life SciencesAkershusNorway

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