# The Feeding Stuffs Regulations 1988, Part C: OTHER FEEDING STUFFS NOT COVERED BY PARTS A OR B


Analytical constituents
Limits of variations (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 above 3%
0.3 for declarations up to and including 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 above 3%
0.3 for declarations up to and including 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—
20% of the amount stated
Moisture
If present in excess—
1 for declarations of 10% or more
10% of the amount stated for declarations of 5% or more but less than 10%
0.5 for declarations less than 5%
Oil
If present in excess—
3.6 for declarations of 15% or more
24% of the amount stated for declarations of 5% or more but less than 15%
1.2 for declarations less than 5%
In case of deficiency—
1.8 for declarations of 15% or more
12% of the amount stated for declarations of 5% or more but less than 15%
0.6 for declarations less than 5%
Phosphorus
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%
Protein
In case of deficiency
2 for declarations of 20% or more
10% of the amount stated for declarations of 10% or more but less than 20%
1 for declarations less than 10%
Protein equivalent of uric acid
If present in excess—
1.25, or 25% of the amount stated, whichever is the greater
Sodium
If present in excess—
4.5 for declarations of 15% or more
30% of the amount stated for declarations of 2% or more but less than 15%
0.6 for declarations less than 2%
Starch
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%
Sugar (total sugars, reducing sugars, sucrose, lactose, glucose (dextrose))
If present in excess—
4 for declarations of 20% or more
20% of the amount stated for declarations of 5% or more but less than 20%
1 for declarations less than 5%
In case of deficiency—
2 for declarations of 20% or more
10% of the amount stated for declarations of 5% or more but less than 20%
0.5 for declarations less than 5%
Volatile nitrogenous bases
If present in excess—
20% of the amount stated
Xanthophyll
In case of deficiency—
30% of the amount stated

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Source: https://www.legislation.gov.uk/uksi/1988/396/schedule/3/part/C (the official version)
Page: https://openlegislation.uk/feeding-stuffs-regulations-1988/schedule-3/part-C
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.