Comparaison des vaches issues de fécondation in vitro et de l'insémination artificielle sur les critères de fertilité, santé et productivité

This project is in the field of: Agricultural production and aquaculture and more particularly in Animal reproduction and nutrition. Indeed, in vitro fertilization is an approach which aims to accelerate genetic gain by the reproduction of the best subjects in order to improve the productivity, health and longevity of farm animals. The production of gametes is sensitive to nutrition and females who are egg donors in in vitro fertilization must have a balanced energy supply in order to achieve epigenetic programming of the next generation. Our laboratory is particularly specialized in this programming, particularly with regard to DNA methylation. What we are missing is to better understand the phenotype of females produced by in vitro fertilization to ensure that the influence of nutrition and the in vitro fertilization process works in the direction of better animal performance in the short and long. term. Our work is therefore part of the dairy production value chain and starting at its very source (the bovine embryo) where the metabolic programming begins until the production site, the healthy cow, and including the value of the product. like the components of milk.