In force Publication date 01 Apr 24 TL23 Download options Resource description Technical Letter: Growth promoters Download options Available in 1 language. Language English Download This link will open in a new window. Related Documents Archives Related Documents Language English TL23 - Version 2.0 - Summary of Modifications (PDF, 101Ko) Active Archived Language English TL23 - Version 1.0 (PDF, 118Ko) Related resources Technical Letters - Index See Details about Technical Letters - Index