Accuracy and reliability

Overall accuracy

The overall accuracy is considered to be high, because it a census. It alone covers the production of compound feed produced by Danish agribusiness companies and not directly imported compound feed or compound feed produced by farmers. The results are therefore not fully true for the overall production of compound feed in Denmark. It will be higher than in this statistics. In 2022, the data collection and data processing for the content composition of feed mixtures was restructured, so that the collection became identical to Production of compound feed. The change entails a data breach in FODER2 from 2022, as there is no longer direct comparability in the use of the feed materials and hence the quantities of single feed substances, which are calculated on the basis of the quantity in the compound feed. The old enumeration method has led to a certain overestimation of the use of some of the feed materials in feed mixtures.

Sampling error

Not applicable. Prior to 2022, there was some sampling uncertainty in the section of the statistics The content composition of compound feed as that section was not part of the total count.

Non-sampling error

The statistics covers the production of compound feed at the agribusiness companies, but not directly imported compound feed or compound feed produced by farmers at their farms. The results are therefore not fully true for the overall production of compound feed in Denmark. The production of compound feed produced by agribusiness companies are covered very well. In 2022, the data collection and data processing for The content composition of compound feed was restructured, so that the collection became identical to Production of compound feed. The change entails a data breach in FODER2 from 2022, as there is no longer direct comparability in the use of the feed materials and hence the quantities of single feed substances, which are calculated on the basis of the quantity in the compound. The old enumeration method has led to a certain overestimation of the use of some of the feed materials in feed mixtures.

Quality management

Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.

Quality assurance

Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.

Quality assessment

The overall accuracy is described as good, as in the case of a census. The statistics only covers the production of compound feed by agribusiness companies and do not cover directly imported compound feed or compound feed produced by farmers. The results are therefore not fully true for the overall Danish production of compound feed.

Data revision - policy

Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.

Data revision practice

There are no revisions for the Statbank table FODER3, only final figures are published. For FODER2, revisions are made for up to 1 1/2 years from the reference period. The two most recently published years are therefore provisional.