| BC | Border Cheviot | LE | English Leicester | ||||
| BL | Border Leicester | LI | Lincoln | ||||
| BO | Booroola Merino | LY | Barbados Black Belly | ||||
| BW | Black Welsh Mountain | MM | Merino | ||||
| CD | Canadian Arcott | MP | Polled Merino | ||||
| CF | Clun Forest | MT | Montadale | ||||
| CL | Columbia | NC | North Country Cheviot | ||||
| CN | California Red | NL | Nwefoundland Local | ||||
| CO | Charollais | OU | Outaouais Arcott | ||||
| CP | Coopworth | OX | Oxford | ||||
| CR | Cornedale | PE | Perendale | ||||
| CU | Lacaune | PO | Polypay | ||||
| CW | Cotswold | RG | Rambouillet | ||||
| DC | Berrichon du cher | RI | Rideau Arcott | ||||
| DH | Horned Dorset | RL | Ryeland | ||||
| DL | DLS | RM | Romnelet | ||||
| DO | Dorper | RO | Rouge de l'ouest | ||||
| DP | Polled Dorset | RV | Romanov | ||||
| DY | Drysdale | RY | Romney | ||||
| EF | East Friesian ( Friesland ) | SC | Scottish Blackface | ||||
| FN | Finnish Landrace | SL | Shetland | ||||
| HL | Hesham Lsicester | SR | Shropshire | ||||
| HS | Hampshire | ST | Southdown | ||||
| IF | Ile de France | SU | Suffolk | ||||
| IL | Icelandic | SX | St. Croix | ||||
| JA | Jacob | TA | Targhee | ||||
| KA | Katahdin | TU | Tunis | ||||
| KH | Kerry Hill | TX | Texel | ||||
| KK | Karakul | ZZ | Other Breed | ||||