(19)

(11)

EP 0 771 143 A1

(12)

(43) Date of publication: 07.05.1997 Bulletin 1997/19 (21) Application number: 95924469.0 (22) Date of filing: 12.07.1995

(51) International Patent Classification (IPC):  A01K 1/ 015( . ) (86) International application number: PCT/GB1995/001653 (87) International publication number: WO 1996/002129 (01.02.1996 Gazette 1996/06)

(84) Designated Contracting States: BE DE FR GB NL (30) Priority: 16.07.1994 GB 19940014404 (71) Applicant: Davidson, Ian Robert Darlington, County Durham DL1 3LA (GB)	(72) Inventor: Davidson, Ian Robert Darlington, County Durham DL1 3LA (GB) (74) Representative: Sanderson, Michael John, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)