1. RUNENG is a kind of fat emulsifier with biological activity. ... used in the animal feed. 3. Decrease the feed cost. Runeng (EMULSIFIER) is a patent product of Longchang Company, its ... influences the digestion and absorption of the fat. So using Runeng may get the following benefits: 1. To improve the ... which could decrease the breeding cost and increase economic benefits RUNENG (feed fat emulsifier)