Recognised experts in these fields have been selected as plenary speakers and are currently being contacted. The overall theme “Science for Sustainable Nutrition” will be addressed in six sessions covering a wide range of provisional topics:

  • Optimizing resource utilization for future feeds – Wednesday morning
  • Dynamics of digestion and absorption – Wednesday afternoon
  • Models and Methodologies – Thursday morning
  • Functionality of the intestinal microbiome – Thursday afternoon
  • The role of the gut in whole-body functioning – Friday morning

Discussion forum on digestibility markers

Dinsdag 17 mei van 16.15-17.15 uur

The ban of titanium dioxide (E171) as feed additive – consequences and alternatives

Titanium dioxide (E171, TiO2) is one of the most common, and often preferred, marker used for determination of nutrient digestibility. Following EFSA’s evaluation of safety, TiO2 is no longer authorized as an additive in animal nutrition in EU and should be completely withdrawn from the market by 20th of June 2022.

In this session we seek to exchange information among scientists on the use of TiO2 and alternative markers in digestibility studies.  For instance, what are the regulatory and practical conditions or exemptions acquired for use of TiO2 or alternative markers that are not on the current EU authorisation list of feed additives. Are there good or even better added or intrinsic markers, and if so, for what purpose and under what circumstances are they used? Other related topics can also be included.

We welcome you to this informal session to share your knowledge and experience. If you have data to share, you can present 1-3 slides. Please contact for further information.

Program Schedule

Tuesday 17 May  Wednesday 18 May  Thursday 19 May  Friday 20 May 
Morning Satellite symposia Opening and plenary session
Topic: Optimizing resource utilization for future feeds
Plenary session
Topic: Models and Methodologies
Plenary session
Topic: The role of the gut in whole-body functioning
Afternoon Satellite symposia Poster session Poster session Lunch and closing
Welcome reception Plenary session
Topic: Dynamics of digestion and absorption
Plenary session
Topic: Functionality of the intestinal microbiome
Evening Informal dinner Conference dinner


In addition to the technical program there will be social activities that will encourage and foster networking opportunities.

Tuesday 17 May 
On Tuesday evening, you are invited to join the welcome reception opening of the 15th International Symposium on Digestive Physiology of Pigs (DPP2022).
Location: tbc

Wednesday 18 May 
An informal dinner will be organised for all participants on Wednesday evening.
Location: Arminius, Museumpark 3, 3015 CB, Rotterdam
Price: : €75

Thursday 19 May 
On the last evening of the symposium a gala dinner will be organised.
Location: Diergaarde Blijdorp, Blijdorplaan 8, 3041 JG, Rotterdam
Price: : €125

More information will follow in due course.