(19)

(11)

EP 0 942 993 A2

(12)

(43) Date of publication: 22.09.1999 Bulletin 1999/38 (21) Application number: 97948873.0 (22) Date of filing: 04.11.1997

(51) International Patent Classification (IPC):  A23K 1/ 165( . ) A23L 1/ 211( . ) C12N 15/ 55( . ) A23L 1/ 015( . ) C12N 9/ 16( . ) C12N 15/ 82( . ) (86) International application number: PCT/EP1997/006076 (87) International publication number: WO 1998/020139 (14.05.1998 Gazette 1998/19)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 05.11.1996 GB 19960023133 (71) Applicant: Finnfeeds International Ltd Marlborough, Wiltshire SN8 1XN (GB)	(72) Inventors: MORGAN, Andrew, J. Marlborough SN8 1XN (GB) HESSING, Martin NL-3994 ED Houten (NL) SLEIJSTER-SELIS, Hetty, E. NL-1901 JE Casticum (NL) (74) Representative: HOFFMANN - EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)