A method of using emulsifiers in association with vegetable oleins in an animal feed. In particular, the present invention relates to a method of using emulsifiers E484 and/or E487 (Community Register of Feed Additives—EU Reg. No. 1831/2003) in association with vegetable oleins as a technological additive for increasing the hourly output (tons/hour) in a plant for preparing an animal feed and/or to improve the characteristics of an animal feed, preferably in the form of pellets, and/or to reduce the dustiness of the same. Furthermore, the present invention relates to an animal feed and a process for preparing the same wherein said emulsifiers are used in association with said vegetable oleins with the function of a technological additive.