Skip to main content
Department of Agriculture, Environment and Rural Affairs Department of Agriculture, Environment and Rural Affairs An Roinn Talmhaíochta, Comhshaoil agus Gnóthaí Tuaithe Depairtment o' Fairmin, Environment an' Kintra Matthers

Main navigation

  • Home
  • Topics
  • Publications
  • Consultations
  • Contact

Translation help

Translate this page

Select a language

  • Arabic — عربي
  • Chinese (Simplified) — 中文简体
  • Chinese (Traditional) — 中文繁體
  • Dutch — Nederlands
  • Filipino — Filipino
  • French — Français
  • German — Deutsch
  • Hungarian — Magyar
  • Irish — Gaeilge
  • Italian — Italiano
  • Latvian — Latviešu
  • Lithuanian — Lietuvių kalba
  • Polish — Polski
  • Portuguese — Português
  • Romanian — Română
  • Russian — Русский
  • Slovak — Slovenčina
  • Spanish — Español
  • Ukrainian — Українська
  • How to amend details for an existing Bovine AGN

    Topics:
    • Animal Health, Welfare and Trade, 
    • Identification, registration and movement

    To make changes to the details of your AGN, contact your local DDO.

    For more information about AGN’s see questions 36-44 at the following link:

    Guide to DAERA Identification Numbers for Business Customers and Animal Group Number (AGN) keepers 2026.pdf 

     

    Relevant Legislation.

    REGULATION (EU) 2016/429 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL.

    Article 84, of above legislation known as Animal Health Law (AHL), requires operators of establishments keeping Bovines to be registered with the Department before keeping Bovines.

    Related content

    • Bovine Animal and Establishment (Herd) Statuses
    • Bovine IRM Legislation
    • Brexit transition Q&As - Movement of animals
    • Cattle Statuses - best practice advice
    • Codes for use in a herd register
    • Ear tag information
    • Elasmobranch Tagging Programme
    • EU exit and moving equines
    • How to apply for a Bovine Animal Group Number (AGN) commonly known as a herd number.
    • How to Keep the Required Records for Bovine Animals
    • Identification, registration and movement of birds
    • Identification, registration and movement of camelids and cervids
    • Identification, registration and movement of cattle ( Bovine Animals)
    • Identification, Registration and Movement of Horses
    • Identification, registration and movement of pigs
    • Identification, registration and movement of sheep and goats
    • Introduction to Identification, Registration and Movement of Animals
    • Livestock Markets
    • Meat Plant Information
    • NIFAIS Go Live Preparations
    • Northern Ireland Poultry Health Assurance Scheme (NIPHAS)
    • Notification of Bovine Births
    • Notification of Bovine Deaths
    • Notification of Bovine Movements
    • Notification of changes to Bovine Animal details
    • Q&As - Camelids and Cervids May 2026
    • Q&As - Livestock Identification Tag Prefix Code
    • Q&As for Pet Travel from 1 January 2021
    • Questions and Answers on Traceability
    • Registration for Online services
    • Single Lifetime Identification Document for Equines (“Horse Passports”)
    • The Identification of Bovine Animals
    • Travelling with Pets
    Share this page Share on Facebook (external link opens in a new window / tab) Share on X (external link opens in a new window / tab) Share by email (external link opens in a new window / tab)

    Department footer links

    • Crown copyright
    • Terms and Conditions
    • Privacy
    • Cookies
    • Accessibility
    • The Northern Ireland Executive
    • The Executive Office
    • Department of Agriculture, Environment and Rural Affairs
    • Department for Communities
    • Department for Education
    • Department for the Economy
    • Department of Finance
    • Department for Infrastructure
    • Department for Health
    • Department of Justice
    • nidirect.gov.uk — the official government website for Northern Ireland citizens