The attendees could discover the potential of seaweed and yeasts technologies to provide solutions to reinforce immune response and gut health. (Image source: Olmix)
Olmix on 15 October, organised the Immuno'Science forum dedicated to immunity and gut health in Porto
The forum which was enriched by the presence of representatives from 14 different countries brought together international keynote speakers covering various species such as poultry, swine, ruminants, and aquaculture. The attendees could discover the potential of seaweed and yeasts technologies to provide solutions to reinforce immune response and gut health.
Poultry session
In his multidisciplinary research, Dr Rami Dalloul, the R. Harold Harrison distinguished professor of Poultry Science at the University of Georgia in Athens, focuses on areas investigating host-pathogen interactions during enteric challenges, particularly coccidiosis and clostridial diseases in chicken and turkey.
In his talk, entitled 'Enteric defenses in poultry: dynamics and potential modulation,' Dr Dalloul gave a comprehensive overview of the birds’ immune system, and introduced the unique bacterial and parasitic co-infection model developed in his lab, to mimic a necrotic enteritis (NE) challenge. He also summarised the results that several nutritional strategies targeting immunity, gut integrity and microbiota obtained using this model, opening the floor to Olmix speaker, Maria Garcia, immunity product manager, to present the results obtained using this coinfection model with Algimun, a seaweed based solution.
In this trial on broilers, Algimun not only improved performance but also significantly reduced the inflammatory response and enhanced gut integrity, thereby indicating Algimun's ability to improve broiler performance and combat the negative effects of NE.
Swine session
In his presentation, Nicolas Bertho, a senior scientist at INRAE in France provided an overview of key swine immunology concepts. He revisited previous collaborative research with Olmix and shared findings from the ongoing immunity project ONIRIS which focuses on the effects of oral seaweed extracts (MSP) supplementation during the delivery of an attenuated PRRSV vaccine. The study highlights that this supplementation modulates systemic inflammatory cytokines and improves the anti-PRRSV humoral response.
Following his presentation, Francisco Rocha Pinto, product manager for the Vet range at Olmix, discussed the positioning and application of Searup in swine. A number of experiments have been carried out on Searup. Two types of effects namely short-term pro-inflammatory response and long-term anti-inflammatory and antiviral benefits have been observed on two types of immune cells: monocytes and alveolar macrophages. A second experiment also noted an enhanced immune response that was observed when Searup was administered one day before and two days after vaccination. A third and final experiment is planned for 2025, where further promising results from oral seaweed supplementation are anticipated to address the significant challenges posed by PRRS.
Ruminant session
During his presentation, Matteo Mezzetti, who holds a PhD from the Doctoral School in the Agro-Food System Agrisystem brought interesting and deep information on the inflammation during the transition period and all the consequences on early lactation, health and performing in dairy cows. Matteo presented several nutritional strategies that can be used as tools to promote proper immune functions of the cows.
After Matteo’s presentation, Elise Nacer-Khodja, product specialist at Olmix, presented field applications of Algimun in dairy cows in heat stress conditions, in which the benefits of using Algimun during the transition period of dairy cows were highlighted. This included lower inflammatory status and improved immune response around calving, resulting in a higher milk production during the 3 first months of lactation.
Aqua session
Professor and head of the Aquaculture and Fisheries group at Wageningen University & Research in the Netherlands, Dr Geert Wiegertjes in his presentation entitled 'Immunomodulation in aquaculture: managing expectations' provided deep insights into the challenges that affect fish health in aquaculture and an overview of the components of the immune system and mucosal barrier function.
Following the presentation, Raquel Pereira, aqua specialist at Olmix, gave an overview of Algimun effects on fish and shrimp immune response and growth performance in both scientific and commercial conditions, highlighting how Algimun reinforces natural defenses in a complete approach, promoting systemic immunomodulation and mucosal barrier functions (gut, skin and gills).
By promoting overall health status and improving animal performance in different contexts, particularly in challenging conditions, Olmix has demonstrated to be a reliable partner and supplier of natural solutions to support the growth and sustainability of modern livestock farming stakeholders.
