METHOD OF STIMULATING GROWTH OF DOMESTICATED ANIMALS,IMPROVING EFFECTIVNESS OF FOOD UTILIZATION BA DOMESTICATED ANIMALS AND IMPROVING LEANNESS OF DOMESTICATED ANIMALS AND FODDER PRE-MIXTURE

摘要

beta -Phenethanolamines of the following formula are effective in promoting growth and improving feed efficiency and leanness in animals: CHEM wherein: R1 is hoydrogen, hydroxy, or methoxy; R2 is hydrogen or fluoro; R3 is hydrogen or C1-C2 alkyl; R4 is hydrogen or methyl; R5 is hydrogen, fluoro, nitro, hydroxy, SO2CH3 or CONH2; provided that R1 is hydrogen only when R5 is nitro or SO2CH3; or an acid addition salt thereof.