A Penn State University study published in Poultry Science found that a broiler chicken's age has a far stronger influence on its resistome than dietary additives such as antibiotics, probiotics, or essential oils, lending support to further investigation of antibiotic alternatives in poultry production.
A Chinese study published in September 2026 reports that single-cell protein derived from the bacterium Ralstonia eutropha H16 can substitute soybean meal in broiler chicken diets at inclusion levels up to 8%, maintaining growth performance while improving antioxidant capacity, immune status, and gut health.
Researchers at Chile's Pontifical Catholic University of Valparaíso have developed a synthetic peptide-based feed additive, Aqua P-Enhance, designed to boost Atlantic salmon's innate immune response against salmonid rickettsial septicaemia. Salmon farming company Invermar has agreed to integrate the additive into its feed production lines for real-world farm trials, with performance targets including a 50% reduction in SRS-related mortality and antimicrobial use, and a 10% increase in final body weight.
A new Portuguese initiative, the Food4Thought project, is working with secondary-school and university students to counter misinformation about farmed fish and insects as food sources, using a three-stage educational approach backed by scientific evidence.