Knowledge Center · Oils & Fats

Oils and fats in animal feed: a buyer's guide

Q: Which oil delivers the most energy?

Refined soy and rapeseed oils deliver ~8.8 Mcal/kg ME — the highest of any feed ingredient.

Q: How much oil can I include in a ration?

Typically 2–6% depending on species and life stage; more than 8% requires emulsification support.

Oils and fats supply the highest energy density in any ration, improve pellet quality and carry fat-soluble vitamins. They are also the most easily adulterated ingredient class — quality specifications and analytical testing are essential.

Peroxide, FFA, unsaponifiables
Adulteration red flags
Storage best practices

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Categories in use

Refined vegetable oils (soy, palm, rapeseed), crude vegetable oils, rendered animal fats (tallow, lard, poultry fat), fish oil and blended acid oils.

Non-negotiable specifications

Free fatty acid < 15% for acid oils, peroxide value < 10 meq/kg on delivery, moisture-impurities-unsaponifiables (MIU) < 2%, and heavy metal limits per destination regulation.

Adulteration risks

Mineral oil contamination, used cooking oil blending and dioxin exposure. Third-party analysis on every lot is standard enterprise practice.

Storage and handling

Heated tanks (45–55°C), nitrogen blanketing for fish oil, antioxidant dosing (BHT, ethoxyquin alternatives) and dedicated pipework prevent oxidation.

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FAQ

Common questions

Which oil delivers the most energy?