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The use of near infrared reflectance spectroscopy (NIRS) for the prediction of the digestible energy content of barley for growing pigs

  • M. E. E. McCann (a1) (a2) (a3), K. J. McCracken (a1) (a2) and R. E. Agnew (a1) (a2) (a3)


It is not possible to carry out in vivo pig digestibility studies on each feed or feed ingredient therefore there is a need for a rapid means of predicting the digestible energy content of a feed or feed ingredient. Near infrared reflectance spectroscopy (NIRS) is an extremely rapid technique and has been used to predict chemical composition and nutritive value for a wide range of feeds and feed ingredients (Leeson et al 2000). In the literature, some workers have reported that NIRS has a high degree of accuracy for determining chemical composition and nutritive value while others have reported a lower degree of accuracy. The aim of the current study was to examine the value of NIRS in predicting the digestible energy (DE) content of barley from which pig diets were formulated.



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George, J. (2000) Studies on the relationships between physical and chemical parameters of wheat and their relevance to nutritive value. PhD Thesis, The Queen’s University of Belfast.
Leeson, S., Valdes, E. V. and De Lange, C. F. M. (2000) Near infrared reflectance spectroscopy and related techniques for the analysis of feed ingredients. New Developments in Feed Evaluation, International Postgraduate Seminar, Wageningen University, The Netherlands.
McCann, M. E. E. (2001). Studies on the nutritive value of barley for growing pigs. PhD Thesis, The Queen#’s University of Belfast.


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