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Abstract
for subject 9.2 „Use of non-protein-nitrogen compounds in ruminant feeding“, prepared by the COMECON work-group on the occasion of the Methodical Conference held from 6th to 11th of February, 1969.
in Berlin, German Democratic Republic.
(Participating countries: People's Republic of Bulgaria, Hungarian People's Republic, German Democratic Republic, People's Republic of Poland, Roumanian Socialist Republic, Union of Soviet Socialist Republics, Czechoslovak Socialist Republic).