BIPYRIDINE SUBSTITUTED IMIDAZOLIDENE COPPER COMPLEX AND ITS USE IN FOOD-PRODUCING ANIMALS, AND BIPYRIDINE, 2,2'-(2-IMIDAZOLIDINYLIDENE) DI-COPPER COMPLEX AND USE IN ANIMALS

摘要

Certain novel bipyridine substituted imidazoylidene compounds, their metal complexes (Cu, Fe and Ni) which are effective to improve feed efficiency and promote growth in food-producing animals, particularly ruminants. The compounds are described by the general formula in which R1 and R2 are hydrogen, alkyl or phenyl, and including the cupric, nickelous and ferrous salts thereof, or are described by the general formula including the cupric, nickelous and ferrous salts thereof. t