# Commission Regulation (EC) No 429/2008 of 25 April 2008 on detailed rules for the implementation of Regulation (EC) No 1831/2003 of the European Parliament and of the Council as regards the preparation and the presentation of applications and the assessment and the authorisation of feed additives (Text with EEA relevance), Division 4: Table. Animal categories: Sheep

Extent: E+W+S+N.I.

Category
Definition of the animal category
Approximate duration period (weight/age)
Minimum duration of long term studies for efficacy
Period
Age
Weight
Lambs for rearing
Lambs reared for future reproduction
From birth
Up to 3 months
15-20 kg
56 days
Lambs for fattening
Lambs that are reared for lamb meat production.
From birth
Up to 6 months (or older)
up to 55 kg
Until slaughter weight but not less than 56 days
Dairy sheep (for milk production)
Sheep that have produced at least one lamb
84 days (total lactation period shall be reported)
Ewes for reproduction
Female sheep that have been inseminated/mated at least once
From first insemination to the end of second weaning period
Two cycles (if the reproduction parameters are requested)

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Source: https://www.legislation.gov.uk/eur/2008/429/annex/IV/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2008-429/annex-IV/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.