Hamlet Protein presents new data at poultry conference Cartagena

Ever since the first event, the International Conference on Poultry Intestinal Health has been recognized as the most important scientific forum of its kind. It brings together researchers, scientists, and industry experts from all over the world to review scientific studies and innovative concepts.

Hamlet Protein presented the results of a scientific study carried out with professors Sam Rochell, Guillermo Tellez, and Doctor Kyle Teague from the Department of Poultry Science of the University of Arkansas (USA).

The scientific trial was set up to demonstrate how soybean stachyose and raffinose harm intestinal health in starter chicks. In addition to the productive performance of the chicks, several intestinal parameters were evaluated: intestinal permeability, fecal moisture, epithelial morphology, cellular immune response. The results showed that the level of stachyose and raffinose in the feed of young chicks indeed has an effect on their productive performance and on their intestinal health.

Prof. Guillermo Tellez commented: “New insights were acquired on the linear effect of dietary stachyose and raffinose levels on the ratio of heterophils / lymphocytes in blood, which is a marker of immunological stress in birds. For the first time, the level of these two antinutritional factors in starter chick diets has been shown to have a negative effect on immune stress at the systemic level: the higher the content of stachyose and raffinose in feed: the higher the heterophils / lymphocytes ratio in blood.”

Alfred Blanch, Category Manager Poultry at Hamlet Protein added: “The study shows that there is a linear effect on the conversion rate of the chicks: the higher the amount of stachyose and raffinose in the diet, the higher the conversion rate. In other words, worse feed efficiency. Regarding the live weight of the chicks, we observed that levels below 1.2% of stachyose + raffinose in feed can have a positive effect, possibly due to a certain prebiotic role of these two compounds. However, when 1.2% of stachyose and raffinose in feed is exceeded, the weight of the chickens does not increase, and feed efficiency significantly worsens.”

Hamlet Protein will continue evaluating data from this project, focusing on microbiota, and will share further data when they become available.

Hamlet Protein produces soy-based protein ingredients for young piglet, poultry, and cattle feed at two production plants in Denmark and the US. Hamlet Protein services customers around the world through a network of own sales offices and distributors. Find out more www.hamletprotein.com


Providing the right nutrition in the first life stage determines the overall lifetime performance of the animal. Our soy-based specialty ingredients improve health, welfare and performance of young animals. That is how we deliver a strong return on investment to producers around the world.