Emulsifier response scales with the fat-digestion burden: the more added oil and the younger or colder the animal, the more an LPC lysophospholipid at HLB 8-12 has to work with.
Steps
- Map your fat load. List total lipid and added oil. Below ~5% added oil the response is usually marginal; 6-10%+ is the payoff zone.
- Start at the supplier band. Dose LPC per the grade TDS against oil percentage — then hold everything else constant for the trial period.
- Consider the reformulation play. The alternative use: keep energy targets but cut added oil 8-12%, letting emulsification recover the digestibility. Price the two routes; take the better margin.
- Trial with FCR as the endpoint. 6-8 weeks, replicate ponds or tanks, current formula as control. Weigh feed and biomass honestly — leaching losses count.
- Re-tune by season. Cold-water periods digest fat worse; many mills hold emulsifier through winter even at lower oil.
Common mistakes
- Dosing by habit instead of oil level — flat inclusion wastes money at low fat and underperforms at high
- Judging by growth alone — FCR and fat deposition tell the real story
- Pairing high oil with no antioxidant — rancidity cancels emulsification
LPC Emulsifier → Ask a specialist