For over 40 years, our microencapsulation technology empowered the delivery and the slow-release of active ingredients to the intestine of poultry, bypassing the gastric environment.Our scientific research demonstrated that it is possible to maximize performance by lowering the concentration of the compounds.


AviPremium® is a complete range of products based on tributyrin, a triglyceride of butyric acid that helps to maintain the integrity of the intestinal mucosa.



AviPremium® products are based on tributyrin, a triacylglycerol of butyric acid (EU Reg. 1831/2003; FDA 21 CFR 184.1903). Tributyrin is the most concentrated derivate of butyric acid on the market. The tributyrin in AviPremium® is more stable and has superior organoleptic characteristics than butyric acid. AviPremium® products are an alternative to Na-butyrate. In this product, the butyric acid from tributyrin is chemically protected and delivered where butyric acid can be effective. The esterification with glycerol allows the butyric acid to be released in the intestine due to the action of pancreatic lipases. Its microencapsulation allows further advantages and efficacy at the intestinal level.


The full range of products is composed of: AviPremium® L based on liquid tributyrin (85% butyric acid). AviPremium® D, a concentrated source of tributyrin in powder form (55% butyric acid). AviPremium® S and P where the tributyrin is microencapsulated within a vegetable lipid matrix according to the digestive characteristics of swine and poultry respectively (25% butyric acid).

Latest articles from the Press Room

  • Poultry

    A mixture of organic acids and thymol protects primary chicken intestinal epithelial cells from Clostridium perfringens infection in vitro

    In this study, the protective effects of a blend of thymol and organic acids against the effects of Clostridium perfringens type A on chicken intestinal epithelial cells were investigated and compared to bacitracin, a widely used antibiotic in poultry production.
  • Poultry

    Phenol-Rich Botanicals Modulate Oxidative Stress and Epithelial Integrity in Intestinal Epithelial Cells

    The aim of this study was to screen the activity of different sources of phenol compounds on intestinal oxidation and barrier integrity in vitro.
  • Poultry

    Assessing intestinal health. In vitro and ex vivo gut barrier models of farm animals: benefits and limitations

    The concept of “gut health" is not well defined, but this concept has begun to play a very important role in the field of animal science. However, a clear definition of GIT health and the means by which to measure it are lacking. In vitro and ex vivo models can facilitate these studies, creating well-controlled and repeatable conditions to understand how to improve animal gut health.