The utilisation of maize-crop residues for overwintering livestock. 2. Strip and continous grazing of maize-crop residues

afrique du sud beef cattle bovin de boucherie carga ganadera cercado crop residues electrical installations fencing ganado de carne grazing systems hivernage labour mais maize pastoreo en fajas residuos de cosechas sistemas de pastoreo south africa stocking density strip grazing taux de charge trabajo travail wintering