Short Term Effects of Burning and Grazing on the Forage Quality of a <em>Heteropogon contortus</em>- Dominated Savanna in the Southwest of Madagascar

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 burnin...

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Bibliographic Details
Main Authors: V. Rakotoarimanana, M. Grouzis
Format: Article
Language:English
Published: CIRAD 2008-02-01
Series:Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux
Subjects:
Online Access:http://revues.cirad.fr/index.php/REMVT/article/view/10003
Description
Summary: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.
ISSN:0035-1865
1951-6711