I have opened poultry formulas where the additive section was almost more impressive than the nutritional specifications. An enzyme, probiotic, prebiotic, organic acid, phytogenic, toxin binder, emulsifier, antioxidant and another product described simply as supporting gut health. Each had entered the formula for a reason. Nobody could explain why all of them remained.
Feed additive portfolios usually grow through addition, not subtraction. A product is introduced after a trial, a disease problem, an ingredient change, or a persuasive supplier presentation. Another product is added later for a related purpose. But the complete package is seldom evaluated as a system, and eight individually defensible products do not automatically create one defensible program.
