There is pressure from society for sustainable production systems, which makes it necessary the establishment of sustainability parameters for the production systems. In this regard, animal nutrition can influence the viability and sustainability of the production system, not only by the herd feeding impact on milk production cost but also by the emission of greenhouse gases and excretion of pollutants. The basic premise of precision nutrition is the knowledge of the animal nutritional requirements aiming at the establishment of feeding norms and standards for the adequate balance of diets. Thus, this project aimed at establishing national norms and standards for dairy cattle feeding and the metrics of feeding bioefficiency, as well as obtaining qualified phenotypes that will enable molecular studies related to metabolic and productive efficiencies. The results are expected to contribute to increased productivity and economy of milk production systems in Brazil. This project relied on a network that included two Embrapa’s research centers (Embrapa Dairy Cattle and Embrapa Cattle-Southeast) and four Brazilian universities (UFV – Federal University of Viçosa, UFMG - Federal University of Minas Gerais, UFLA – Federal University of Lavras, and UESC – State University of Santa Catarina) besides Texas A&M University (USA).