Abstract

FRANCO-GUERRA, Francisco J et al. Evolution of the alimentary behaviour of Creole goats in tree and shrub species during transhumant grazing, Mexico. Zootecnia Trop. [online]. 2008, vol.26, n.3, pp.383-386. ISSN 0798-7269.

The present study was carried out to determine the evolution of the alimentary selectivity of Creole goats grazing in transhumant pastures in five rangelands in the mountain of the Mixteca Oaxaqueña. Six animals were chosen at random and the method of direct observation of the grazing was used. The different preference levels and the effects of the rangeland and species factors, and their interaction were evaluated. The results indicated that only seven of 18 woody species of more preference were consumed repeatedly by the goats: Quercus liebmannii, Cercocarpus macrophyllus, Eysenhardtia polystachya, Amelanchier denticulata, Acacia pennatula, Acacia farnesiana, and Mimosa lacerata, being due in great extent to its endemic condition and its abundant cover in the studied rangeland.

Keywords : evolution of the selectivity; trees; shrubs; goats.

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