Five species of cereals from 2008 harvest of the ecology farm were examined. All cereals
were characterised by a low dry matter content. Barley was characterised by the highest protein
content (129.54 g . kg-1 d.m.) and maize – lowest (93.57 g . kg-1 d.m.). The maximum value of AA
was observed in the grain of the rye and the triticale. The first amino acid limiting the nutritive value
of protein in all cereals was lysine. The EAAI (WE) values was characterised from 52.43 to 64.44,
and a higher value of EAAI (MH) were observed in the grain of all cereals.