Study of the mineral composition of some forage plants from areas of Mato Grosso do Sul State · Brazil. III. Manganese

Abstract

It was conducted a study about the manganese content of Guinea grass (Panicum maximun), Jaragua grass (Hyparrhenia ruta (Nessi) Stapf ), Pangola grass (Digitaria decumbens, Stent) and Angollnha grass (Eriochloa polystachya (H.B.K.I. Hitchc). Collected (14.820 h.) in areas of the State of Mato Grosso do Sul, Brazil. Sample analisis examined showed In the Guinea grass, Jaragua grass, Pangola grass and Angolinha grass, 190, 167, 811 e 499 ppm of manganese respectively. The Pangola grass exhibited significantly higher concentrations of manganese (811 ppm) than Angolinha grass (499 ppm), Guinea grass (190 ppm) or Jaragua grass (167 ppm). High levels of manganese in Pangola grass and Angolinha grass were found to be toxic for cattle.