Northern Ireland Not yet in force
| Aflatoxin B1 | Feed materials except: | 0.05 |
| —groundnut, copra, palm-kernel, cotton seed, babassu, maize and products derived from the processing thereof | 0.02 | |
| Complete feeding stuffs for cattle, sheep and goats except: | 0.05 | |
| —dairy cattle | 0.005 | |
| —calves and lambs | 0.01 | |
| Complete feeding stuffs for pigs and poultry(except piglets and chicks) | 0.02 | |
| Other complete feeding stuffs | 0.01 | |
| Complementary feeding stuffs for cattle, sheep and goats (except complementary feeding stuffs for dairy animals, calves and lambs) | 0.05 | |
| Complementary feeding stuffs for pigs and poultry (except young animals) | 0.03 | |
| Other complementary feeding stuffs | 0.005 | |
| Castor oil plant Ricinus communis L. | All feeding stuffs | 10 (expressed in terms of castor oil plant husks) |
| Crotalaria spp. | All feeding stuffs | 100 |
| Free Gossypol | Feed materials except: | 20 |
| — cotton-seed cakes | 1200 | |
| Complete feeding stuffs except: | 20 | |
| — complete feeding stuffs for cattle, sheep and goats | 500 | |
| — complete feeding stuffs for poultry (except laying hens) and calves | 100 | |
| — complete feeding stuffs for rabbits and pigs (except piglets) | 60 | |
| Hydrocyanic acid | Feed materials except: | 50 |
| — linseed | 250 | |
| — linseed cakes | 350 | |
| — manioc products and almond cakes | 100 | |
| Complete feeding stuffs except: | 50 | |
| — complete feeding stuffs for chicks | 10 | |
| Rye Ergot Claviceps purpurea | All feeding stuffs containing unground cereals | 1000 |