How should feed performance claims be substantiated?

Define the claimed effect, target species and category, conditions of use, comparison and measurable endpoint. Evidence should match the actual formulation and authorised function, and the claim must remain within destination-market rules. A statistically positive trial result does not automatically support a broad commercial promise across all farms, diets and climates. Sales copy should communicate the evidence accurately, include material limitations and avoid veterinary disease claims unless specifically authorised.