Use of near-infrared reflectance spectroscopy for the estimation of the microbial portion of non-ammonia-nitrogen in the duodenum of dairy cows

Animal Feed Science and Technology - Tập 68 - Trang 225-233 - 1997
P. Lebzien1, Chr. Paul2
1Institute of Animal Nutrition, Bundesallee 50, D 38116 Braunschweig, Germany
2Institute of Grassland and Forage Science, Federal Agricultural Research Centre Braunschweig-Völkenrode, Bundesallee 50, D 38116 Braunschweig, Germany

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