Resumen

TORRES, René; APARICIO, Rafael; ASTUDILLO, Luís  y  GARCIA, Espedito. Use of Andropogon gayanus with different stocking range in an eolic savanna of Capanaparo, Apure state, Venezuela. Zootecnia Trop. [online]. 2007, vol.25, n.3, pp.229-232. ISSN 0798-7269.

ABSTRACT To evaluate Andropogon gayanus with young animals in two seasons of the year, under the conditions of the savanna of the Capanaparo, between August 1990 and May 1992, it was done an experiment in the ranch the Mercedes, Achaguas Municipality, Apure state, on five paddocks which were loaded by 0.5 (low), 1.0 (average), and 1.5 (high) AU/ha, respectively. Stocking rates in all the cases were established by three heifers indicatives of weight and a young bull grazing, which was withdrawn later to adjust  the rates, to which it was taken estimations of the weight every two months. In equal frequency there were realized measurements of production of biomass by paddock, coverage, and height of the pasture, and establishment of tenors of crude protein, phosphorus, calcium, magnesium, copper, and zinc. The highest DM offer was obtained in the rainy season compared to drought, 11 and 9 t DM/ha/year, respectively. The PC contents were 53% higher in the rainy season (6.45%) than in the drought season (3.05%). The tenors of Ca, Mg, and Cu in both seasons were within the normal limits and only the P and Zn concentrations were below the critical level. The low stocking rate had the best animal response with 836 g/anim/d in relation to the average and high rates (613, and 652 g/anim/d) in the rainy season

Palabras clave : Andropogon gayanus; eolic savanna; continuous grazing.