# The Feeding Stuffs Regulations 2000, Part C—: FEED MATERIALS Analytical constituents Limits of variation (absolute value in percentage by weight, except where otherwise specified) Acid index If present in excess— 1.5 for declarations of 15% or more 10% of the amount stated for declarations of 2% or more but less than 15% 0.2 for declarations less than 2% Ash If present in excess— 3 for declarations of 10% or more 30% of the amount stated for declarations of 5% or more but less than 10% 1.5 for declarations less than 5% Ash insoluble in hydrochloric acid If present in excess— 10% of the amount stated for declarations of 3% or more 0.3 for declarations less than 3% Calcium In case of deficiency— 1.5 for declarations of 15% or more 10% of the amount stated for declarations of 2% or more but less than 15% 0.2 for declarations less than 2% Calcium carbonate If present in excess— 1.5 for declarations of 15% or more 10% of the amount stated for declarations of 2% or more but less than 15% 0.2 for declarations less than 2% Carotene In case of deficiency— 30% of the amount stated Chlorides expressed as NaCl If present in excess— 10% of the amount stated for declarations of 3% or more 0.3 for declarations less than 3% Fibre If present in excess— 2.1 for declarations of 14% or more 15% of the amount stated for declarations of 6% or more but less than 14% 0.9 for declarations less than 6% Inulin In case of deficiency— 3 for declarations of 30% or more 10% of the amount stated for declarations of 10% or more but less than 30% 1 for declarations less than 10% Lysine In case of deficiency— 20% of the amount stated Magnesium In case of deficiency— 1.5% for declarations of 15% or more 10% of the amount stated for declarations of 2% or more but less than 15% 0.2 for declarations less than 2% Matter insoluble in light petroleum If present in excess— 1.5 for declarations of 15% or more 10% of the amount stated for declarations of 2% or more but less than 15% 0.2 for declarations less than 2% Methionine In case of deficiency— 20percnt; of the amount stated Moisture If present in excess— 1 for declarations of 10percnt; or more 10percnt; of the amount stated for declarations of 5percnt; or more but less than 10percnt; 0.5 for declarations less than 5percnt; Oil and fat If present in excess— 3.6 for declarations of 15percnt; or more 24percnt; of the amount stated for declarations of 5percnt; or more but less than 15percnt; 1.2 for declarations less than 5percnt; In case of deficiency— 1.8 for declarations of 15percnt; or more 12percnt; of the amount stated for declarations of 5percnt; or more but less than 15percnt; 0.6 for declarations less than 5percnt; Phosphorus In case of deficiency— 1.5 for declarations of 15percnt; or more 10percnt; of the amount stated for declarations of 2percnt; or more but less than 15percnt; 0.2 for declarations less than 2percnt; Protein In case of deficiency— 2 for declarations of 20percnt; or more 10percnt; of the amount stated for declarations of 10percnt; or more but less than 20percnt; 1 for declarations less than 10percnt; Protein equivalent of uric acid If present in excess— 1.25, or 25percnt; of the amount stated, whichever is the greater Sodium If present in excess— 4.5 for declarations of 15percnt; or more 30percnt; of the amount stated for declarations of 2percnt; or more but less than 15percnt; 0.6 for declarations less than 2percnt; Starch In case of deficiency— 3 for declarations of 30percnt; or more 10percnt; of the amount stated for declarations of 10percnt; or more but less than 30percnt; 1 for declarations less than 10percnt; Sugar (total sugars, reducing sugars, sucrose, lactose, glucose (dextrose)) If present in excess— 4 for declarations of 20percnt; or more 20percnt; of the amount stated for declarations of 5percnt; or more but less than 20percnt; 1 for declarations less than 5percnt; In case of deficiency— 2 for declarations of 20percnt; or more 10percnt; of the amount stated for declarations of 5percnt; or more but less than 20percnt; 0.5 for declarations less than 5percnt; Volatile nitrogenous bases In case of deficiency— 20percnt; of the amount stated Xanthophyll In case of deficiency— 30percnt; of the amount stated --- Source: https://www.legislation.gov.uk/uksi/2000/2481/schedule/6/part/C (the official version) Page: https://openlegislation.uk/feeding-stuffs-regulations-2000/schedule-6/part-C Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.