2226-1761 2226-1761 S2226-17612019000200007 10.18004/compend.cienc.vet.2019.09.02.07-10 Paraguay Paraguay 00 12 2019 00 12 2019 9 2 7 10

1 2002 2 2014 3 2012 4 1998 5 Association of Official Analytical Chemists (AOAC) 2000 18º 6 National Research Council (NRC) 2001 7th 7 1963 18 104 104 111 8 2018 Córdoba 9 2013 10 2013 11 2011 12 2013