Estudio preliminar del potencial hemolítico de malezas identificadas en campos ganaderos del Valle Medio de Río Negro

Abstract

The cattle-raising region in the Middle Valley of Río Negro develops in irrigated areas (irrigation channels) as well as in dry valleys and plateaus. Anthropogenic activities have an impact by altering the region's natural grassland ecosystem. The development of weeds is the main indicator that our pastures are in disturbed conditions. In tillage areas, such as the opening of “picadas”, it is common to find pioneering, exotic species that, although they are not of forage interest, can form part of the bovine diet. The vast majority produce physiologically active or toxic substances that can cause harmful effects in the animals that consume them (Beker et al., 2018). Among these compounds, the presence of saponins is very common. These are glycosides that are characterized by their bitter taste, their ability to form persistent foams in aqueous solutions and their hemolytic power that depends on the nature, number and sequence of the sugars in the saponin (Voutquenne et al. 2002). The main objective of this research was to determine the in vitro hemolytic activity of the weed species identified in the region.