KETTUNEN, L. Feed efficiency and its development in animal production . Agricultural and Food Science, [S. l.], v. 49, n. 5, p. 374–381, 1977. DOI: 10.23986/afsci.71951. Disponível em: https://journal.fi/afs/article/view/71951. Acesso em: 16 apr. 2024.