The GCSA have a 3 tier appendix system

All appendix registered animals will be identified with the Owner’s tattoo symbol in one ear PLUS the serial number in the other ear, or other forms of identification that qualify e.g. NLIS tag or photo

There shall be THREE (3) sections numbered 3, 2 & 1

i) Appendix 3 – Females ONLY – Female sired by a registered Guernsey bull from a foundation dairy cow OR sired by a dairy bull from a registered purebred Guernsey cow OR found to be at least 50% Guernsey on genomic testing

ii) Appendix 2 – Females ONLY – Appendix 3 Female progeny sired by a registered purebred Guernsey bull OR found to be at least 72% Guernsey on genomic testing

iii) Appendix 1 – Females ONLY – Appendix 2 Female progeny sired by a registered purebred Guernsey bull OR found to be at least 85% Guernsey on genomic testing

iv) Entry into the Herd Book – Females ONLY – Appendix 1 female progeny sired by a registered Guernsey bull and have acceptable Guernsey colour and breed characteristics

Please note that males may only be registered out of animals deemed to be purebred and registered in the purebred register

Colour markings

Females – accepted colour markings are a shade of fawn or tan with or without white markings or orange and white, or lemon and white. A clear (buff) coloured muzzle is preferred to a smokey or black muzzle

Males – accepted colour markings are golden fawn or tan with or without white markings or orange and white, or lemon and white. Black hair or brindle markings are undesirable and a black nose is most undesirable.

Inspections – The society reserves the right to inspect any animal before it is accepted into the Stud Book

Show eligibility – Appendix 1 & 2 females (minimum 72% Guernsey) can be shown provided they are of acceptable Guernsey colour and breed characteristics.