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The Role of Starch in Urea‐Feeding
Author(s) -
Hollo J.,
Fodor L.,
Gal S.
Publication year - 1979
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19790310906
Subject(s) - urea , starch , hydrolysis , rumen , differential scanning calorimetry , chemistry , chemical engineering , organic chemistry , food science , polymer chemistry , fermentation , physics , engineering , thermodynamics
For partical substitution of the protein requirement of ruminants by urea, the interaction between polyhydroxy compounds (mainly starch) and urea has been investigated. For the study of this interaction, a thermoanalytical method has been developed (Differential Scanning Calorimeter). It has been established that under suitable conditions, a starch‐urea complex is formed, in which the crystalline structure of urea disappears. The product is not hygroscopic and is readily, homogeneously miscible with other feed components. In the course of feeding experiments, hydrolysis in the rumen was found to be retarded, with improved N 2 utilization.