Researchers at the University of Debrecen have confirmed that methionine supplementation during incubation can significantly improve intestinal development, immune response, and overall health in poultry embryos. The study, published in Animal Nutrition, focused on in ovo feeding methods, where nutrients are injected directly into the egg to aid embryonic development.
Led by Csaba Szabó, head of the Department of Animal Nutrition and Physiology at the Faculty of Agriculture, Food Science and Environmental Management, the research compared the effects of DL-methionine and L-methionine on two poultry genotypes: the intensive TETRA-SL laying hybrid and the fawn-colored Hungarian hen preserved at the university’s gene bank.
Results indicated that both DL- and L-methionine enhanced intestinal morphology, while DL-methionine proved slightly more effective. Differences were also observed between genotypes: Hungarian native hens demonstrated stronger antioxidant status and intestinal integrity, while TETRA-SL hybrids showed faster growth and a more robust immune system.
According to Szabó, the findings not only expand knowledge on in ovo feeding but also underline the genetic value of native breeds, supporting ongoing gene preservation efforts. The research contributes to a broader proof-of-concept project involving multiple faculties at the university.
Source: University of Debrecen
About the Author
