(19)

(11)

EP 0 048 249 A1

(12)

(43) Date of publication: 31.03.1982 Bulletin 1982/13 (21) Application number: 81900718.0 (22) Date of filing: 26.03.1981

(51) International Patent Classification (IPC):  A01K 63/ 04( . ) C02F 3/ 22( . ) C02F 3/ 06( . ) (86) International application number: PCT/AU1981/000035 (87) International publication number: WO 1981/002661 (01.10.1981 Gazette 1981/23)

(84) Designated Contracting States: CH DE FR GB LI NL SE (30) Priority: 26.03.1980 AU 19800002926 (71) Applicant: AQUACULTURE INTERNATIONAL (AUSTRALIA) LTD. Novar Gardens, S.A. 5040 (AU)	(72) Inventor: LIGHTBURN, Kenneth Dale West Beach, S.A. 5024 (AU) (74) Representative: Silverman, Warren, et al  HASELTINE LAKE & CO. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)