This article belongs to a study on the valorization of by-products of the industry as feed ingredients.

Use of re-esterified oils, differing in their degree of saturation and molecular structure, in broiler chicken diets
E. Vilarrasa, R. Codony, E. Esteve-Garcia, yA. C. Barroeta
Poultry Science, 2015.

Re-esterified oils are a new type of fat products from the esterification of acid oils (a by-product of the oil refining industry) and glycerol. In this study we have compared the use of re-esterified oils, acid oils and native oils (from palm and soybean) as ingredients in chicken feed.  As it is described in this article (Vilarrasa et al. 2015), results show that re-esterified oils present good digestibility and production values compared to the corresponding acid and native oils. For this reason, from a productive point of view, they could be use in chicken feeding. However, before recommending their use, it is necessary to assess their effects on chicken meat composition, aspect that has also been addressed in our study and that will be published in the near future.

This study is included in our research area “Fats in animal feeding”, and has been conducted in collaboration between LiBiFOOD (University of Barcelona), IRTA and the Veterinary Faculty of the Autonomous University of Barcelona, and with the participation of the company SILO S.p.a. (Florence, Italy). It has been funded by the Ministerio de Economia y Competitividad  (Spain) (ProjectAGL2010-22008-C02-02), and a pre-doctoral research grant from the Generalitat de Catalunya (2012FI B 00406).