The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 1989
Filed:
Jul. 08, 1988
Jonathan R Arch, Banstead, GB;
Beecham Group p.l.c., , GB;
Abstract
A method for increasing the weight gain and/or improving the feed utilization efficiency of livestock is described which comprises the oral or non-oral administration to livestock of an effective, non-toxic amount of a compound of formula (XX): ##STR1## or a salt thereof, in which W is phenyl optionally substituted by halogen or trifluoromethyl, or a benzofuran-2-yl group, R.sup.1x is hydrogen or methyl, R.sup.2x is carboxyl or a group O--Z.sup.4 --CO.sub.2 H or an ester or amide thereof; a group O--E.sup.1 --NR.sup.3x R.sup.4x or a group O--E.sup.1 --OR.sup.5x, wherein R.sup.3x, R.sup.4x and R.sup.5x each represents hydrogen or C.sub.1-6 alkyl, Z.sup.4 is a C.sub.1-6 straight or branched alkylene chain, x is 1 or 2, y is 2 or 3, and E.sup.1 is C.sub.2-7 straight or branched alkylene chain with at least two carbon atoms separating the two heteroatoms in the group R.sup.2x. Also described is a veterinarily acceptable premix formulation administrable in a veterinarily effective amount in feed or water comprising a compound of the formula (XX) or, where appropriate, a veterinarily acceptable salt, ester or amide thereof; in association with a veterinarily acceptable carrier therefor. Additionally, a veterinarily acceptable premix formulation comprising from about 0.001% to about 95% by weight of a compound of formula (XX) administrable in feed or water or, where appropriate, a veterinarily acceptable salt, ester or amide thereof, together with a veterinarily acceptable carrier.