Short Term Effects of Burning and Grazing on the Forage Quality of a <em>Heteropogon contortus</em>- Dominated Savanna in the Southwest of Madagascar
2008
V. Rakotoarimanana | M. Grouzis
An experimental study of the effects of burning and grazing was carried out in Sakaraha area (SW Madagascar). The objectives were to evaluate the combined or separate effects of burning and grazing on the forage quality of a Heteropogon contortus- and Poupartia caffra-dominated savanna. Three burning treatments (no burning, early burning and late burning) and two grazing treatments (grazed, ungrazed) were compared. The forage quality was assessed by studying the grazing value and the forage value. A diachronic study showed (a) burning increased the pasture value and grazing decreased it, (b) burning and grazing could increase the rates of forage value parameters. Both index values (pasture and forage values) had overall the same evolution after burning.
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