October 24, 2019

Trouw Nutrition research shows strong improvement of feed shelf-life using formaldehyde alternative

Research shows that a combination of activated propionates with specific buffered organic acids and surfactants can significantly extend the shelf life of animal feed.

Researchers at Trouw Nutrition, a Nutreco company, conducted trials evaluating the effects on shelf life of a specific blend of free and buffered organic acids and surfactants (Fylax Forte-HC liquid) compared to formaldehyde used in animal feed and raw materials.

As the table below shows, the product containing buffered acids considerably improved the shelf life of the feed and raw materials compared to formaldehyde. Researchers attributed the improvement of shelf life, in comparison to formaldehyde, to the activated propionates, along with a potent blend of organic acids and surfactants. 

Additionally, researchers noted the volatile nature of formaldehyde delivers little residual effect and thus cannot prevent recontamination of moulds in raw ingredients or compound feed. In contrast, the activated propionates act as mould cell-wall penetrating agents and buffered organic acids ensure prolonged availability in the final product, preventing recontamination during storage and handling.

"Given that feed represents a high percentage of the investment associated with raising an animal, it is critical that producers maximise the efficiency of their feed investment," said Dr. Prince Nanda, global product manager - Trouw Nutrition. "Research suggests that Trouw Nutrition's activated propionates, along with a specific blend of organic acids and surfactants, can support feed safety and efficient feed management. Beyond supporting reduction of Enterobacteriaceae, particularly Salmonella levels in swine and poultry feed, research suggests activated propionates can also help extend the shelf life of feed," said Dr. Nanda.