# The Feeding Stuffs Regulations 1995, Schedule 9: METHOD OF CALCULATING THE ENERGY VALUE OF COMPOUND FEEDS


The energy value of compound poultry, ruminant and pig feeds and feeding stuffs intended for particular nutritional purposes for cats and dogs shall be calculated inaccordance with the formulae set out below on the basis of the percentages of certain analytical components of the feed or food. After application of these formulae, the results shall be given to one decimal place.
Poultry feeds: megajoules (MJ) of metabolisable energy (ME), nitrogen corrected, per kilogramof compound feed.
MJ of ME/kg of feed = 0.1551 × % protein + 0.3431 × %oil + 0.1669 × % starch + 0.1301 × % total sugar (expressed as sucrose).
Ruminant feeds: megajoules (MJ) of metabolisable energy (ME) per kilogram of dry matter in the compound feed.
MJ of ME/kg of dry matter = 0.14 × % Neutral detergent Cellulase plus Gamanase Digestibility + 0.25 × % oil.
Pig feeds: megajoules (MJ) of digestible energy (DE) per kilogram of dry matter in the compoundfeed.
MJ of DE/kg of dry matter = 17.47 + 0.079 × % protein + 0.158 × % oil − 0.331 × % ash − 0.140 Neutral Detergent plus Amylase Fibre.
Feeding stuffs intended for particular nutritional purposes for cats and dogs: megajoules (MJ) of metabolisable energy (ME) per kilogram of compound dog or cat food.
(a) cat and dog foods with the exception of cat foods having a moisture content exceeding 14%:
MJ of ME/kg of food = 0.1464 × protein + 0.3556 × % oils and fats + 0.1464 × % nitrogen-free extract;
(b) cat foods having a moisture content exceeding 14%:
MJ of ME/kg of cat food = (0.1632 × % protein + 0.3222 × % oils and fats + 0.1255 × % nitrogen-free extract) − 0.2092;
where in either case the percentage of nitrogen-free extract is calculated by subtracting from 100 the total of the percentages of moisture, ash, protein oils and fats and fibre.
N.B Where the results of analysis are to be given on a dry matter basis, this may be achieved by analysing either the dried material, or fresh material and correcting for themoisture content.

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Source: https://www.legislation.gov.uk/uksi/1995/1412/schedule/9 (the official version)
Page: https://openlegislation.uk/feeding-stuffs-regulations-1995/schedule-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.